GB/T 18046-2017_English: PDF (GB/T18046-2017)
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| Standard ID | GB/T 18046-2017 (GB/T18046-2017) | | Description (Translated English) | Ground granulated blast furnace slag used for cement, mortar and concrete | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q11 | | Classification of International Standard | 91.100.10 | | Word Count Estimation | 14,177 | | Date of Issue | 2017-12-29 | | Date of Implementation | 2018-11-01 | | Older Standard (superseded by this standard) | GB/T 18046-2008 | | Drafting Organization | China Building Materials Academy | | Administrative Organization | National Cement Standardization Technical Committee | | Regulation (derived from) | National Standards Bulletin 2017 No. 32 | | Proposing organization | China Building Materials Federation | | Issuing agency(ies) | People's Republic of China General Administration of Quality Supervision, Inspection and Quarantine, China National Standardization Administration | | Standard ID | GB/T 18046-2008 (GB/T18046-2008) | | Description (Translated English) | Ground granulated blast furnace slag used for cement and concrete | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q11 | | Classification of International Standard | 91.100.10 | | Word Count Estimation | 10,115 | | Date of Issue | 2008-01-21 | | Date of Implementation | 2008-07-01 | | Older Standard (superseded by this standard) | GB/T 18046-2000 | | Quoted Standard | GB 175; GB/T 176; GB/T 203; GB/T 208; GB/T 2419; GB/T 5483; GB 6566; GB/T 8074; GB 9774; GB 12573; GB/T 17671; JC/T 420; JC/T 667 | | Drafting Organization | China Building Materials Academy | | Administrative Organization | National Standardization Technical Committee Cement | | Regulation (derived from) | National Standard Approval Announcement 2008 No.1 (Total No.114) | | Proposing organization | China Building Materials Federation | | Issuing agency(ies) | Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China | | Summary | This standard specifies the definition of granulated blast furnace slag powder, components and materials, technical requirements, test methods, inspection rules, packaging, signs, transportation and storage. This standard is applicable for cement and concrete admixtures admixture of granulated blast furnace slag powder. | | Standard ID | GB/T 18046-2000 (GB/T18046-2000) | | Description (Translated English) | Ground granulated blast furnace slag used for cement and concrete | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q12 | | Classification of International Standard | 91.100.10; 91.100.30 | | Word Count Estimation | 8,819 | | Date of Issue | 2000/4/3 | | Date of Implementation | 2000/12/1 | | Adopted Standard | JIS A6206-1997, NEQ | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 1, 2008 (No. 114 overall) | | Proposing organization | State Building Materials Industry Bureau | | Issuing agency(ies) | State Quality and Technical Supervision |
GB/T 18046-2017
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.100.10
Q 11
Replacing GB/T 18046-2008
Ground granulated blast furnace slag used for
cement, mortar and concrete
ISSUED ON: DECEMBER 29, 2017
IMPLEMENTED ON: NOVEMBER 01, 2018
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Components and materials ... 6
5 Technical requirements ... 6
6 Test method ... 7
7 Inspection rules ... 8
8 Factory-leaving, delivery and acceptance ... 10
9 Packaging, marking, transportation and storage ... 11
Appendix A (Normative) Determination methods of slag powder activity index,
mobility ratio and initial setting time ratio ... 12
Appendix B (Normative) Determination method of slag powder water content
... 15
Appendix C (Normative) Determination method of slag powder glass content
... 17
Ground granulated blast furnace slag used for
cement, mortar and concrete
1 Scope
This Standard specifies the definition, components and materials, technical
requirements, test methods, inspection rules, factory-leaving, delivery and
acceptance, packaging, marking, transportation and storage of ground
granulated blast furnace slag powder (hereinafter referred to as slag powder).
This Standard applies to the ground granulated blast furnace slag powder that
is used for cement mixture, mortar and concrete admixture.
2 Normative references
The following documents are indispensable for the application of this document.
For dated references, only the dated version applies to this document. For
undated references, the latest edition (including all amendments) applies to this
document.
GB 175, Common Portland Cements
GB/T 176, Methods for chemical analysis of cement
GB/T 203, Granulated blast furnace slag used for cement production
GB/T 208, Test method for determining cement density
GB/T 1346, Test methods for water requirement of normal consistency,
setting time and soundness of the Portland cement
GB/T 2419, Test method for fluidity of cement mortar
GB/T 5483, Natural gypsum
GB 6566, Limits of radionuclides in building materials
GB/T 8074, Testing method for specific surface of cement - Blaine method
GB/T 9774, Sacks for packing cement
GB/T 12573, Sampling method for cement
GB/T 17671, Method of testing cements - Determination of strength
wO2 -- mass fraction of oxygen that is absorbed in the air during the burning of
the slag powder, %;
wburnt SO3 -- mass fraction of SO3 that is measured after the slag powder is
burnt, %;
wunburnt SO3 -- mass fraction of SO3 that is measured before the slag powder is
burnt, %.
Xcorrection = Xmeasurement + WO2 ………………… (2)
Where:
Xcorrection -- loss on ignition (mass fraction) after the slag powder is corrected, %;
Xmeasurement -- loss on ignition (mass fraction) that is measured during the slag
powder test, %.
6.7 Glass content
Perform according to Appendix C.
6.8 Radioactivity
Perform according to GB 6566, where the radioactivity test sample is made by
slag powder and Portland cement in a mass ratio of 1: 1.
7 Inspection rules
7.1 Batching and sampling
7.1.1 Batching
Slag powder is batched and sampled at the same level before leaving the
factory. Each batch number is a sampling unit. The slag powder factory batch
number is specified according to the annual production capacity of slag powder
single line as:
For above 60×104 t, not exceeding 2 000 t is a batch number;
For above 30×104 ~ 60×104 t, not exceeding 1 000 t is a batch number;
For above 10×104 ~ 30×104 t, not exceeding 600 t is a batch number;
For below 10×104 t, not exceeding 200 t is a batch number.
When the capacity of the bulk transportation means exceeds the tonnage of the
batch number that is specified by the factory, the number of the batch number
7.3.2 Type inspection
7.3.2.1 Products, of which the type inspection result meets the technical
requirements in Chapter 5, are qualified.
7.3.2.2 Products, of which any item of the type inspection result doesn’t meet
the technical requirements in Chapter 5, are unqualified.
7.4 Inspection report
The content of the inspection report shall include the batch number, inspection
items, the type and amount of gypsum and grinding aids, and other technical
requirements that are agreed in the contract. It shall also include the inspection
results of the physical properties of cement. When it is required by the user, the
production plant shall send the test results other than the 28 d activity index
within 11 days from the day when the slag powder is sent. The 28 d activity
index shall be reported within 32 days from the day when the slag powder is
sent.
8 Factory-leaving, delivery and acceptance
8.1 Slag powder factory-leaving
Only when the technical specifications and packaging of the slag powder are
confirmed to meet the requirements, it can leave the factory.
8.2 Delivery and acceptance
8.2.1 The quality acceptance of the slag powder at the time of delivery can be
based on the test results of the physical samples, or the inspection report of the
same batch of slag powder by the seller. The method of acceptance shall be
agreed upon by the buyer and the seller, and shall be specified in the contract
or agreement. It is the responsibility of the seller to inform the buyer of the
method of acceptance. When there is no written contract or agreement, or the
method of acceptance is not specified in the contract or agreement, the seller
shall indicate on the invoice "the inspection report that is based on the same
batch of slag powder from our factory shall be the basis for acceptance".
8.2.2 When the inspection result of the physical sample is taken as the
acceptance basis, the buyer and the seller shall jointly sample and sign the seal
before delivery or at the place of delivery. The sampling method is performed
according to GB/T 12573; the sampling amount is 10 kg; it is divided into two
equal parts. One is kept by the seller for 40 days, and the other is checked by
the buyer according to the items and methods that are specified in this Standard.
Appendix C
(Normative)
Determination method of slag powder glass content
C.1 Principle
Obtain the glass content by measuring the ratio of the area of the glass portion
to the area on the bottom line in the X-ray diffraction pattern of the ground
granulated blast furnace slag powder.
C.2 Instrument
C.2.1 X-ray diffractometer (copper target)
The power is greater than 3 kW; test conditions: tube current ≥40 mA, tube
pressure ≥37.5 kV.
C.2.2 Electronic balance
The measuring range is not less than 10 g; the minimum division value is not
larger than 0.001 g.
C.2.3 Electrically heated drying oven
Temperature control range (105±5) °C.
C.3 Test steps
C.3.1 Dry the slag powder sample in the oven for 1 h. Use agate grinding
platinum to grind; pass it all through an 80 μm square-hole sieve. Scan the
crystal plane interval of 0.237 nm ~ 0.404 nm (2θ = 22.0° ~ 38.0°) at a scanning
speed equal to or less than 1° (2θ) per minute.
C.3.2 The linear distance of the 1° (2θ) diffraction angle on the diffraction
pattern curve is not less than 10 mm. The height of the strongest diffraction
peak in the space (d-space) between 0.404 nm ~ 0.237 nm crystal planes shall
be greater than 100 mm.
Note: When the scanning range is extended to 10° ~ 60°, the existence of
impurities can be searched. Identify and analyze its main components
through the main peak of the impurities; report it together with the glass
content.
C.4 Pattern processing
......
GB/T 18046-2008
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.100.10
Q 11
Replacing GB/T 18046-2000
Ground granulated blast furnace slag
used for cement and concrete
ISSUED ON. JANUARY 21, 2008
IMPLEMENTED ON. JULY 01, 2008
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 5
2 Normative references ... 5
3 Terms and definitions ... 6
4 Components and materials ... 6
5 Technical requirements ... 6
6 Test methods ... 7
7 Inspection rules ... 8
8 Packaging, marking, transportation and storage ... 11
Appendix A (Normative) Determination of slag powder activity index and
fluidity ratio ... 12
Appendix B (Normative) Determination of moisture content of slag powder .. 15
Appendix C (Normative) Determination of glass content of slag powder ... 17
Foreword
This standard replaces GB/T 18046-2000 “Ground granulated blast furnace
slag used for cement and concrete”.
As compared with GB/T 18046-2000, the main changes of this standard are as
follows.
- ADD the Clause of “Components and materials” (Clause 4 of this version);
- MODIFY the slag powder surface area requirements from “the specific
surface area of S75, S95, S105 slag is not less than 350 m2/kg” into “S75
grade ≥ 300 m2/kg, S95 grade ≥ 400 m2/kg, S105 grade ≥ 500 m2/kg”
(Clause 4 of 2000 version; Clause 5.1 of this version);
- MODIFY the slag powder fluidity ratio from the “not less than 95% for the
S75 grade; not less than 90% for the S95 grade; AND not less than 85%
for the S105 grade” into “not less than 95% for the S75 grade, S95 grade
and S105 grade” (Clause 4 of 2000 version; Clause 5.1 of this version);
- MODIFY the chloride content from “not more than 0.02%” into “not more
than 0.06%” (Clause 4 of 2000 version; Clause 4.1 of this version);
- In the clause of loss on ignition test method, ADD “As the oxidation of the
sulfur oxides in the ignition process of slag causes the determination error,
so it is required to correct the test results.” (Clause 5.1 of 2000 version;
Clause 5.1 of this version);
- In the inspection rules, ADD the inspection item requirements (Clause
7.2.2 of this version);
- ADD the type inspection to the inspection rules (Clause 7.3 of this
version);
- MAKE supplementary requirements for the delivery and acceptance rules
(Clause 7.5.1, 7.5.2, and 7.5.3 of this version);
- MODIFY the requirements for the control cement into “Portland cement or
common Portland cement complying with the requirements of GB 175
Common Portland cement having a strength level of 42.5, 7d
compressive strength of 35 MPa ~ 45 MPa, 28d compressive strength of
50 MPa ~ 60 MPa, specific surface area of 300 m2/kg ~ 400 m2/kg, the
SO3 content of 2.3% ~ 2.8%, AND the alkaline content (Na2O + 0.658K2O)
of 0.5% ~ 0.9%.” (Clause A.3.1 of Appendix A in 2000 version; Clause
A.3.1 of Appendix A in this version);
- ADD the selective indicators and the corresponding test methods of the
“slag powder glass content” (Clause 5 and Appendix C of this version).
Appendix A, Appendix B, and Appendix C of this standard are normative
appendixes.
This standard was proposed by the China Building Materials Federation.
This standard shall be under the jurisdiction of the National Cement
Standardization Technical Committee (SAC/TC 184).
The main drafting organizations of this standard. China Building Materials
Science Research Institute, Shanghai Baotian New Building Materials Co., Ltd.,
China Metallurgical Construction Research Institute.
The participating drafting organizations of this standard. Tangshan Tanglong
New Building Material Co., Ltd., Shanghai Academy of Building Research
(Group) Co., Ltd., Jiangsu Shasteel Group Co., Ltd., Jiangsu Yongsteel Group
Co., Ltd., Jiangsu Nanjing Meibao New Building Materials Co., Yunan Ruian
Building Materials Investment Co., Ltd., Fujian Yuanxin Building Materials Co.,
Ltd., Building Materials Industry Information Technology Institute.
The main drafters of this standard. Yan Bilan, Jiang Lizhen, Liu Chen, Wang
Xin, Zhu Guilin.
This standard was first released on April 3, 2000, AND this is the first revision.
Ground granulated blast furnace slag
used for cement and concrete
1 Scope
This standard specifies the definition, components and materials, technical
requirements, test methods, inspection rules, packaging, marking,
transportation and storage of ground granulated blast furnace slag.
This standard applies to the ground granulated blast furnace slag which is
used as the cement mixture and concrete admixture.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For the dated references, the subsequent
amendments (excluding corrections) or revisions do not apply to this Standard;
however, parties who reach an agreement based on this Standard are
encouraged to study if the latest versions of these documents are applicable.
For undated references, the latest edition of the referenced document applies.
GB 175 Common Portland cement
GB/T 176 Method for chemical analysis of cement (GB/T 176-1996, eqv
ISO 680.1990)
GB/T 203 Granulated blast furnace slag used for cement production
GB/T 208 Standard test method for cement density
GB/T 2419 Test method for fluidity of cement mortar
GB/T 5483 Gypsum and anhydrite (GB/T 5483-1996, neq ISO 1587.1975)
GB 6566 Limits of radionuclides in building materials
GB/T 8074 Testing method for specific surface of cement - Blaine method
GB 9774 Sacks for packing cement
GB 12573 Sampling method of cement
GB/T 17671 Method of testing cements - Determination of strength (ISO
method) (GB/T 17671-1999, idt ISO679.1989)
JC/T 420 Methods for chemical analysis of chlorine in cement raw materials
JC/T 667 Grinding aids for use in the manufacture of cement
3 Terms and definitions
The following terms and definitions apply to this standard.
Ground granulated blast furnace slag powder
It uses the ground granulated blast furnace slag as the main raw material, by
adding a small amount of gypsum powder which is ground to a certain fineness,
referred to as ground granulated blast furnace slag, abbreviated as slag
powder.
4 Components and materials
4.1 Slag
The ground granulated blast furnace slag in line with GB/T 203.
4.2 Gypsum
The category G or M gypsum or mixed gypsum of grade II (inclusive) in line
with the provisions of GB/T 5483.
4.3 Grinding aids
It complies with the provisions of JC/T 667, AND its addition shall not exceed
0.5% of the mass of slag powder.
5 Technical requirements
Slag powder shall comply with the technical specifications in Table 1.
Table 1 -- Technical indicators
Item Grade S105 S95 S75
Density / (g/cm3) ≥ 2.8
Specific surface area / (m2/kg) ≥ 500 400 300
Activity index / % ≥ 7 d 95 75 55
28 d 105 95 75
Fluidity ratio / % ≥ 95
Moisture content (mass fraction) /% ≤ 1.0
Sulfur trioxide (mass fraction) /% ≤ 4.0
Chloride ion (mass fraction) /% ≤ 0.06
Loss on ignition (mass fraction) /% ≤ 3.0
Glass content (mass fraction) /% ≥ 85
Radioactivity Qualified
6 Test methods
6.1 Loss on ignition
FOLLOW the requirements of GB/T 176, BUT the ignition time is 15 min ~ 20
min.
The error caused by the oxidization of sulfide in the ignition process of the slag
powder can be corrected by the use of formula (1) and formula (2).
wO2 = 0.8 x (w ignited SO3 - w non-ignited SO3) ... (1)
Where.
wO2 - Mass fraction of oxygen absorbed in from the air during slag
ignition, %;
w ignited SO3 - Mass fraction of SO3 after the ignition of slag, %;
w non-ignited SO3 - Mass fraction of SO3 before the ignition of slag, %;
X correction = X measured + wO2... (2)
Where.
X correction - Loss on ignition of slag powder after correction (mass
fraction), %;
X measured - Loss on ignition of slag powder obtained by test (mass
fraction), %.
6.2 Sulfur trioxide
In accordance with GB/T 176.
6.3 Chloride
In accordance with JC/T 420.
6.4 Density
In accordance with GB/T 208.
6.5 specific surface area
In accordance with GB/T 8074.
6.6 Activity index and fluidity ratio
In accordance with Appendix A (normative).
6.7 Moisture content
In accordance with Appendix B (normative).
6.8 Glass content
In accordance with Appendix C (normative).
6.9 Radioactivity
In accordance with GB 6566, wherein the radioactive test sample is made by
mixing the slag powder and Portland cement at a mass ratio of 1.1.
7 Inspection rules
7.1 Numbering and sampling
7.1.1 Numbering
Slag powder shall be numbered and sampled by the same grade before
exit-factory. Each number is a sampling unit. AND the slag powder exit-factory
number is specified as follows based on the slag powder single line annual
production capacity.
M...
......
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