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 CJJ 1-2008: Code for construction and quality acceptance of road works in city and town---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/CJJ1-2008CJJ
INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P CJJ 1-
Code for Construction and Quality Acceptance of Road
Works in City and Town
Issued on. APRIL 02, 2008
Implemented on. SEPTEMBER 01,
Issued by. Ministry of Housing and Urban-Rural Development (MOHURD) of the
People's Republic of China
INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Code for Construction and Quality Acceptance of Road
Works in City and Town
J 792-2008
Approval Department. Ministry of Housing and Urban-Rural Development of the People's
Republic of China
Implementation Date. September 1, 2008
China Architecture and Building Press
Beijing 2008
Announcement of the Ministry of Housing and Urban-Rural
Development of the People's Republic of China
No.11
 Table of Contents1 General Provisions... 8
2 Terms and Codes... 9
3 Basic Requirements... 9
4 Construction Preparation... 12
5 Measurement... 14
6 Subgrade... 23
7 Base... 43
8 Mixed Charge Level of Bitumen... 60
9 Bituminous Penetration Type and Bituminous Surface Treatment Surface Course
... 84
10 Cement Concrete Surface Course... 91
11 Paved Surface Course... 114
12 Surface Course of Squares and Parks... 119
13 Sidewalk Paving... 124
14 Pedestrian Underpass Structure... 129
15 Retaining Wall... 141
16 Auxiliary Structure... 149
17 Construction during Winter and Rainy Season... 164
18 Engineering Quality and Completion Acceptance... 168
Appendix A Record Tables for Subitem, Subsection and Unit Engineering Inspection
... 175
Explanation of Wording in this Code... 181
Code for Construction and Quality Acceptance of Road
Works in City and Town1 General Provisions1.0.1 This code is formulated with a view to strengthening the construction technology
management of roads in city and town, standardizing construction requirements, unifying
inspection and acceptance standard of construction and quality as well as improving
engineering quality.
1.0.2 This code is applicable to the inspection and acceptance of the construction and quality
of constructed, renovated or extended roads, squares, parks in city and town.
1.0.3 The quality standard of materials, semi-finished products and or finished products shall
be in accordance with the relevant national current standards.
1.0.4 The construction and quality acceptance of road works in city and town shall not only
meet the requirements stipulated in this code, but also comply with those in the current relevant
ones of the nation.2 Terms and Codes2.1 Terms
2.1.1 Cement concrete surface course
A road surface course paved by cement concrete.
2.1.2 Bituminous surface course
A generic term for road surface course paved with bitumen as a binder.
2.1.5 General item
Test items except dominant items.
2.1.6 Sampling inspection
Inspection, based on a sampling plan, on a certain quantity of samples taken from materials,
members and accessories as well as equipment or road works in city and town.
2.2 Codes
A - Petroleum bitumen for road;
AC - Dense-grading bituminous concrete mixture, including coarse mixture and fine
mixture;3 Basic Requirements3.0.1 The construction organization shall have corresponding construction qualification for
road works in city and town.
3.0.2 The construction organization shall establish sound construction technology, quality
and safe production management system as well as formulate and implement construction
management systems.
3.0.3 Before construction, the construction organization shall organize relevant construction
technology management personnel to carry out deep site investigation, learn about the site
condition and make sufficient construction preparation.
3.0.4 Before commencement, the construction organization shall investigate the construction
site according to the contract documents, design documents, relevant laws and regulations,
standards, codes and specifications as well as information on such structures as underground
pipelines within the construction boundary and engineering hydrogeological information;
3.0.9 During construction, the next subitem engineering mustn't be proceeded before
the previous subitem engineering passes the acceptance.
3.0.13 The road works shall include unit engineering, subsection engineering, subitem
engineering and inspection lot which constitute the inspection and acceptance foundation of
engineering construction and quality.
3.0.14 After the completion of unit engineering, the construction organization shall carry out
self-checking and submit the completion data, self-checking results to the supervision engineer
to apply for pre-acceptance after passing the self-checking.4 Construction Preparation4.0.1 Before commencement, the development organization shall make technical disclosure
to the relevant personnel from construction, supervision and design organizations, and prepare
relevant documents.
4.0.3 Before commencement, the development organization shall organize the design and
survey organizations to hand over site measurement control piles as well as bench marks to the
construction organization, and relevant documents shall be prepared. The construction
organization shall formulate a construction measurement scheme and determine measurement
control network, lines and points according to the actual conditions.
4.0.5 Before commencement, the construction technology personnel shall make careful
review on the construction drawings. If any problem is discovered, the construction technology
personnel contact the designer promptly for change, and relevant documents shall be prepared.
4.0.6 Before commencement, the construction organization shall prepare construction
organization design. The construction organization design shall be prepared according to the
contracts, bidding documents, design documents, relevant construction laws and regulations,
standards, codes and specifications as well as site conditions. The construction organization
design shall include construction arrangement, construction plan, guaranteed quality, safe
guarantee systems and technical measures, necessary special construction design as well as
environment protection and traffic dispersion measures.
4.0.7 Before construction, the measuring instruments and tools shall be verified and the
materials shall be inspected.
4.0.8 Before construction, the quality guarantee plan as well as the unit engineering,
subsection engineering, subitem engineering and inspection lot for engineering quality control
shall be determined according to the construction organization design and submitted to the
supervision engineer for approval before implementation;
4.0.9 Before commencement, safe technology training shall be carried out on the site
operation personnel according to the engineering characteristics, and qualification training shall
be carried out for the personnel for special work.5 Measurement5.1 General Requirements
5.1.1 Before construction measurement, the following preparation shall be made.
5.1.2 Before commencement, the construction organization shall carry out office and site
rechecking on datum point, datum line and height measurement control data specified in
construction drawings. During rechecking, if any unconformity or link-up problem with
adjacent road section or bridge under construction is discovered, it shall be reported to the
development organization for enquiry so as to obtain an accurate result.
5.1.4 The control pile for construction measurement shall be protected and calibrated.
5.1.5 The measuring record shall be prepared in a special form. The record shall be legible
and must not be altered.
5.2 Plane Control Measurement
5.2.1 During plane measurement, the local uniform urban coordinate system shall be followed.
Where it is difficult to adopt the local uniform urban coordinate system, the false coordinate
system adopted for a small measuring area shall be approved by the superior competent
administrative and planning department.
5.2.2 The layout of plane control network shall adapt to local conditions, guarantee accuracy,
meet the actual construction needs and is convenient for application.
5.2.4 The construction measurement shall be ready for the control and checking of starting
points, end points, turning points, road cross-points as well as the positions and directions of
other critical facilities.
5.4 Construction Positioning Measurement
5.4.1 During construction, the construction center line and elevation control pile shall be
arranged according to the construction plan, and the measuring pile shall be arranged according
to the procedure.
5.4.4 Before subgrade construction, the positions of underground pipelines and other
structures which may be exposed, touched or damaged in subgrade construction shall be
measured and indicated according to the drawings, data and site conditions.
5.4.5 Where the scope of land occupancy and relocation is checked during construction
preparation, the border line of the road construction scope shall be measured on site.
5.4.6 Where the engineering scale is large and the measuring pile may be damaged during
construction, auxiliary plane measuring baseline and elevation control pile shall be arranged.
5.2.9 and 5.3.4 in this code. Where the total station is used to measure the fixed points of
coordinates, different methods shall be used for coordinate calculation and the given points
shall be rechecked; moreover, work and rechecking records shall be made. Before measurement,
it shall be signed and confirmed by the supervisor.6 Subgrade6.1 General Requirements
6.1.1 Control pile for center line of road, side line pile and elevation control pile and others
shall be re-inspected before construction. Confirming no mistake before construction is
necessary.
6.1.2 The original drainage system which was damaged under construction shall be processed
with efficient measures.
6.1.5 Temporary construction road shall be made according to project scale and
environmental conditions before construction. Temporary construction road shall meet
requirements of allocation and transportation for construction machinery and travel safety
without disturbing the construction.
6.2 Drainage and Dewatering in Construction
6.2.1 Drainage and dewatering schemes shall be compiled according to engineering geology,
hydrology, meteorological data, construction period and site environment before construction.
Drainage facility shall be maintained and cleaned in time to guarantee unobstructed condition
of drainage in construction period.
6.2.2 Drainage and dewatering construction shall not disturb the natural structure of subgrade
soil to guarantee the safety of adjacent structures and constructions.
6.2.5 Measures to prevent quicksand shall be taken for dewatering in fine sand and silt soil.
6.2.6 Cross section and longitudinal slope shall be determined through water conservancy
calculation for outside sewer on top of cutting; bottom width and ditch depth should not be less
than 50 cm. Adequate anti-seepage safety distance or anti-seepage measures shall be made
between drain ditch and the top edge of cutting; a cross slope with 2% leaning to drain ditch
shall be made on the top edge. Measure against erosion shall be taken for drain ditch.
6.3 Earthwork Subgrade
6.3.1 Before subgrade construction, water accumulated on ground shall be eliminated and
drained; tree root pit, well point, tomb pit etc. shall be technically handled; the ground shall be
smooth.
6.3.4 At the end filling and digging of subgrade, center line of road, subgrade side line shall be
recovered; the subgrade shall be shaped and rolled to survival. Compaction degree shall meet
relevant requirements of Table 6.3.12-2.
6.3.5 Measures must be taken to process frost boiling. Where limestone soil is used to process
frost boiling, the soil should be taken from local.
6.3.10 Excavation construction shall comply with the following requirements.
6.4 Stonework Subgrade
6.4.1 Construction equipment shall be selected according to geologic condition, construction
operation environment.
6.4.2 If rock character of cutting is discovered mutated, report and ask the design organization
to transact altered design timely.
6.4.5 Stonework filling of subgrade shall meet the following requirements.
6.6 Construction Processing
6.6.1 Where underground utilities and other construction existing within range of subgrade,
construction shall meet the following requirements.7 Base7.1 General Requirements
7.1.1 Lime stabilization soil material construction shall be finished 30 ~ 45 days before winter;
while cement stabilization soil material construction shall be finished 15 ~ 30 days before
winter.
7.2 Lime Stabilized Soil Base
7.2.1 Original materials shall meet the following requirements.
7.2.2 Mix design of limestone soil shall meet the following requirements.
7.2.5 Hand stirring limestone soil shall meet the following requirements.
7.2.7 Roller compaction shall meet the following requirements.
7.3 Base of Lime and Pulverized Fuel Ash Stabilized Gravels
7.3.1 Raw materials shall meet the following requirements.
7.4.2 Mix design procedure of lime, pulverized fuel ash, steel slag stabilized soil shall be in
accordance with the relevant requirements of Article 7.2.2 of this code. Select mix proportion
according to mean compressive strength R and design compressive strength Rd of specimen.
Mix proportion may be primarily selected according to those specified in Table 7.4.2.8 Mixed Charge Level of Bitumen8.1 General Requirements
8.1.1 In construction, the paving layers and the depth of every layer shall be specified
according to the topping depth and the category, composition and construction season of the
bitumen mixtures.
8.1.4 Where the old bitumen pavement was adapted as base to overlay the mixed charge level
of asphalt, the original pavement shall be handled, leveled or strengthened to meet the design
and the following requirements.
8.1.7 The material shall meet the following requirements.
8.2 Hot Mixed Bituminous Mixed Surface Course
8.2.1 Hot mixed bituminous mixture (HMA) is applicable to the surface course of various
classified roads. Thereof types shall be divided according to nominal maximum grain size of
aggregate, mineral aggregate grading and porosity; and shall comply with those specified in Table
8.2.5 Stirring and construction temperature for bituminous mixture shall be determined according
to bitumen mark number, viscosity, climate conditions, thickness of paved layer and temperature
of underlying layer.9 Bituminous Penetration Type and Bituminous Surface Treatment Surface Course9.1 General Requirements
9.1.1 Base course shall be cleaned clearly before construction; measures avoiding bitumen
spraying pollution shall be taken for kerb and manhole etc.
9.1.5 Rolling compaction shaping shall be done by opening traffic orderly and controlling speed
after shaping of bituminous penetration surface course and bituminous surface treatment surface
course by rolling compaction. Where bleeding is discovered after traffic is open, joint filler shall
be scattered for disposal.
9.2 Bituminous Penetration Surface Course
9.2.1 Bituminous penetration surface course should be used for the road surface course below
city secondary trunk road. The thickness of basic material layer shall be determined according to
the grain size of crushed stone; the thickness should not be greater than 10 cm.
9.2.4 Material specifications and dosage for bituminous penetration surface course should be in
accordance with those specified in Table 9.2.4.
9.2.5 Paving and rolling compaction for main layer aggregates shall meet the relevant
requirements of Articles 7.7.2 and 7.7.3 in this code.
9.2.6 Spraying for each layer bitumen shall meet the relevant requirements of Article 8.4.1 in
this code.
9.2.11 Where bituminous penetration type structure is adopted for road base course or binder
course, surface seal coat materials may not be scattered.
9.3 Bituminous Surface Treatment Surface Course
9.3.1 The type and mark number of petroleum bitumen for road and emulsified bitumen used
for bituminous surface treatment surface course as well as quality specifications of aggregate
shall meet the requirements of design and this code and shall adapt to local environmental
conditions.
CJJ
INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P CJJ 1-
Code for Construction and Quality Acceptance of Road
Works in City and Town
Issued on. APRIL 02, 2008
Implemented on. SEPTEMBER 01,
Issued by. Ministry of Housing and Urban-Rural Development (MOHURD) of the
People's Republic of China
INDUSTRY STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
Code for Construction and Quality Acceptance of Road
Works in City and Town
J 792-2008
Approval Department. Ministry of Housing and Urban-Rural Development of the People's
Republic of China
Implementation Date. September 1, 2008
China Architecture and Building Press
Beijing 2008
Announcement of the Ministry of Housing and Urban-Rural
Development of the People's Republic of China
No.11Table of Contents1 General Provisions... 8
2 Terms and Codes... 9
3 Basic Requirements... 9
4 Construction Preparation... 12
5 Measurement... 14
6 Subgrade... 23
7 Base... 43
8 Mixed Charge Level of Bitumen... 60
9 Bituminous Penetration Type and Bituminous Surface Treatment Surface Course
... 84
10 Cement Concrete Surface Course... 91
11 Paved Surface Course... 114
12 Surface Course of Squares and Parks... 119
13 Sidewalk Paving... 124
14 Pedestrian Underpass Structure... 129
15 Retaining Wall... 141
16 Auxiliary Structure... 149
17 Construction during Winter and Rainy Season... 164
18 Engineering Quality and Completion Acceptance... 168
Appendix A Record Tables for Subitem, Subsection and Unit Engineering Inspection
... 175
Explanation of Wording in this Code... 181
Code for Construction and Quality Acceptance of Road
Works in City and Town1 General Provisions1.0.1 This code is formulated with a view to strengthening the construction technology
management of roads in city and town, standardizing construction requirements, unifying
inspection and acceptance standard of construction and quality as well as improving
engineering quality.
1.0.2 This code is applicable to the inspection and acceptance of the construction and quality
of constructed, renovated or extended roads, squares, parks in city and town.
1.0.3 The quality standard of materials, semi-finished products and or finished products shall
be in accordance with the relevant national current standards.
1.0.4 The construction and quality acceptance of road works in city and town shall not only
meet the requirements stipulated in this code, but also comply with those in the current relevant
ones of the nation.2 Terms and Codes2.1 Terms
2.1.1 Cement concrete surface course
A road surface course paved by cement concrete.
2.1.2 Bituminous surface course
A generic term for road surface course paved with bitumen as a binder.
2.1.5 General item
Test items except dominant items.
2.1.6 Sampling inspection
Inspection, based on a sampling plan, on a certain quantity of samples taken from materials,
members and accessories as well as equipment or road works in city and town.
2.2 Codes
A - Petroleum bitumen for road;
AC - Dense-grading bituminous concrete mixture, including coarse mixture and fine
mixture;3 Basic Requirements3.0.1 The construction organization shall have corresponding construction qualification for
road works in city and town.
3.0.2 The construction organization shall establish sound construction technology, quality
and safe production management system as well as formulate and implement construction
management systems.
3.0.3 Before construction, the construction organization shall organize relevant construction
technology management personnel to carry out deep site investigation, learn about the site
condition and make sufficient construction preparation.
3.0.4 Before commencement, the construction organization shall investigate the construction
site according to the contract documents, design documents, relevant laws and regulations,
standards, codes and specifications as well as information on such structures as underground
pipelines within the construction boundary and engineering hydrogeological information;
3.0.9 During construction, the next subitem engineering mustn't be proceeded before
the previous subitem engineering passes the acceptance.
3.0.13 The road works shall include unit engineering, subsection engineering, subitem
engineering and inspection lot which constitute the inspection and acceptance foundation of
engineering construction and quality.
3.0.14 After the completion of unit engineering, the construction organization shall carry out
self-checking and submit the completion data, self-checking results to the supervision engineer
to apply for pre-acceptance after passing the self-checking.4 Construction Preparation4.0.1 Before commencement, the development organization shall make technical disclosure
to the relevant personnel from construction, supervision and design organizations, and prepare
relevant documents.
4.0.3 Before commencement, the development organization shall organize the design and
survey organizations to hand over site measurement control piles as well as bench marks to the
construction organization, and relevant documents shall be prepared. The construction
organization shall formulate a construction measurement scheme and determine measurement
control network, lines and points according to the actual conditions.
4.0.5 Before commencement, the construction technology personnel shall make careful
review on the construction drawings. If any problem is discovered, the construction technology
personnel contact the designer promptly for change, and relevant documents shall be prepared.
4.0.6 Before commencement, the construction organization shall prepare construction
organization design. The construction organization design shall be prepared according to the
contracts, bidding documents, design documents, relevant construction laws and regulations,
standards, codes and specifications as well as site conditions. The construction organization
design shall include construction arrangement, construction plan, guaranteed quality, safe
guarantee systems and technical measures, necessary special construction design as well as
environment protection and traffic dispersion measures.
4.0.7 Before construction, the measuring instruments and tools shall be verified and the
materials shall be inspected.
4.0.8 Before construction, the quality guarantee plan as well as the unit engineering,
subsection engineering, subitem engineering and inspection lot for engineering quality control
shall be determined according to the construction organization design and submitted to the
supervision engineer for approval before implementation;
4.0.9 Before commencement, safe technology training shall be carried out on the site
operation personnel according to the engineering characteristics, and qualification training shall
be carried out for the personnel for special work.5 Measurement5.1 General Requirements
5.1.1 Before construction measurement, the following preparation shall be made.
5.1.2 Before commencement, the construction organization shall carry out office and site
rechecking on datum point, datum line and height measurement control data specified in
construction drawings. During rechecking, if any unconformity or link-up problem with
adjacent road section or bridge under construction is discovered, it shall be reported to the
development organization for enquiry so as to obtain an accurate result.
5.1.4 The control pile for construction measurement shall be protected and calibrated.
5.1.5 The measuring record shall be prepared in a special form. The record shall be legible
and must not be altered.
5.2 Plane Control Measurement
5.2.1 During plane measurement, the local uniform urban coordinate system shall be followed.
Where it is difficult to adopt the local uniform urban coordinate system, the false coordinate
system adopted for a small measuring area shall be approved by the superior competent
administrative and planning department.
5.2.2 The layout of plane control network shall adapt to local conditions, guarantee accuracy,
meet the actual construction needs and is convenient for application.
5.2.4 The construction measurement shall be ready for the control and checking of starting
points, end points, turning points, road cross-points as well as the positions and directions of
other critical facilities.
5.4 Construction Positioning Measurement
5.4.1 During construction, the construction center line and elevation control pile shall be
arranged according to the construction plan, and the measuring pile shall be arranged according
to the procedure.
5.4.4 Before subgrade construction, the positions of underground pipelines and other
structures which may be exposed, touched or damaged in subgrade construction shall be
measured and indicated according to the drawings, data and site conditions.
5.4.5 Where the scope of land occupancy and relocation is checked during construction
preparation, the border line of the road construction scope shall be measured on site.
5.4.6 Where the engineering scale is large and the measuring pile may be damaged during
construction, auxiliary plane measuring baseline and elevation control pile shall be arranged.
5.2.9 and 5.3.4 in this code. Where the total station is used to measure the fixed points of
coordinates, different methods shall be used for coordinate calculation and the given points
shall be rechecked; moreover, work and rechecking records shall be made. Before measurement,
it shall be signed and confirmed by the supervisor.6 Subgrade6.1 General Requirements
6.1.1 Control pile for center line of road, side line pile and elevation control pile and others
shall be re-inspected before construction. Confirming no mistake before construction is
necessary.
6.1.2 The original drainage system which was damaged under construction shall be processed
with efficient measures.
6.1.5 Temporary construction road shall be made according to project scale and
environmental conditions before construction. Temporary construction road shall meet
requirements of allocation and transportation for construction machinery and travel safety
without disturbing the construction.
6.2 Drainage and Dewatering in Construction
6.2.1 Drainage and dewatering schemes shall be compiled according to engineering geology,
hydrology, meteorological data, construction period and site environment before construction.
Drainage facility shall be maintained and cleaned in time to guarantee unobstructed condition
of drainage in construction period.
6.2.2 Drainage and dewatering construction shall not disturb the natural structure of subgrade
soil to guarantee the safety of adjacent structures and constructions.
6.2.5 Measures to prevent quicksand shall be taken for dewatering in fine sand and silt soil.
6.2.6 Cross section and longitudinal slope shall be determined through water conservancy
calculation for outside sewer on top of cutting; bottom width and ditch depth should not be less
than 50 cm. Adequate anti-seepage safety distance or anti-seepage measures shall be made
between drain ditch and the top edge of cutting; a cross slope with 2% leaning to drain ditch
shall be made on the top edge. Measure against erosion shall be taken for drain ditch.
6.3 Earthwork Subgrade
6.3.1 Before subgrade construction, water accumulated on ground shall be eliminated and
drained; tree root pit, well point, tomb pit etc. shall be technically handled; the ground shall be
smooth.
6.3.4 At the end filling and digging of subgrade, center line of road, subgrade side line shall be
recovered; the subgrade shall be shaped and rolled to survival. Compaction degree shall meet
relevant requirements of Table 6.3.12-2.
6.3.5 Measures must be taken to process frost boiling. Where limestone soil is used to process
frost boiling, the soil should be taken from local.
6.3.10 Excavation construction shall comply with the following requirements.
6.4 Stonework Subgrade
6.4.1 Construction equipment shall be selected according to geologic condition, construction
operation environment.
6.4.2 If rock character of cutting is discovered mutated, report and ask the design organization
to transact altered design timely.
6.4.5 Stonework filling of subgrade shall meet the following requirements.
6.6 Construction Processing
6.6.1 Where underground utilities and other construction existing within range of subgrade,
construction shall meet the following requirements.7 Base7.1 General Requirements
7.1.1 Lime stabilization soil material construction shall be finished 30 ~ 45 days before winter;
while cement stabilization soil material construction shall be finished 15 ~ 30 days before
winter.
7.2 Lime Stabilized Soil Base
7.2.1 Original materials shall meet the following requirements.
7.2.2 Mix design of limestone soil shall meet the following requirements.
7.2.5 Hand s......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
 
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