JC/T 746-2007Concrete tiles (English PDF)

Foreword

This standard is the revision of JC 746-1999 "Concrete tiles".

The main changes in this standard as compared with JC 746-1999 are as

follows.

- REDEFINE the technical indicators and judgment rules of the bearing

capacity;

- ADD the thermal resistance performance and test methods;

- ADD the technical indicators and test methods of the mass standard

deviation;

- ADD the provisions on the radionuclide limit of the concrete tiles as

manufactured from industrial waste residue;

- ADD the inspection report filling format;

- SIMPLIFY the test methods of covering width;

- CANCEL the provisions of dividing into three levels - excellent products (A),

first class products (B), and qualified products (C) - based on the physical

and mechanical properties;

Appendix A, Appendix B, Appendix C, Appendix D, and Appendix E of this

standard are normative appendixes, AND Appendix F is an informative

appendix.

This standard shall, from the date of implementation, replace JC 746-1999.

This standard was proposed by China Building Materials Industry Association.

This standard shall be under the jurisdiction of the National Standardization

Technical Committee for Cement Products.

The responsible drafting organizations of this standard. Liaoning Institute of

Building Materials Science, Lafarge Roofing System (China) Limited.

The participating drafting organizations of this standard. China Construction

Northeast Design and Research Institute, Changzhou Huamei Building

Materials Co., Ltd., Wuxi Fuji Colored Tiles Co., Ltd., Harbin Langen Colored

Tiles Manufacturing Limited Liability Company, Shanghai Sheshanhong New

Building Materials Co., Ltd., Quanzhou Qunfeng Machinery Manufacturing Co.,

Ltd., Liaoning Xinxin Group Building Materials Co., Ltd., Beijing Yipinhong

Concrete tiles

1 Scope

This standard specifies the definition, structure, symbol, abbreviation,

classification, specification, identification, general rules, requirements,

sampling, test methods, inspection rules, marking, product quality certificate,

instruction manual, packaging, storage and transportation of concrete tiles.

This standard is applicable to concrete sloping roof tiles made of cement, fine

aggregate, water, and other main raw materials through mixing, extrusion,

hydrostatic molding, or other molding methods AND their matching concrete

fitting tiles. The concrete tiles may be native tiles, colored tiles or surface

treated tiles.

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 Portland cement and ordinary portland cement

GB 1344 Portland blast furnace slag cement, Portland pozzolana cement,

and Portland flay-ash cement

GB/T 1596 Fly ash used for cement and concrete

GB/T 2015 White portland cement

GB 6566 Limit for radionuclides in building materials

GB 8076 Concrete admixtures

GB 12958 Composite portland cement

GB/T 14684 Sand for construction

JC/T 539 Pigments used in concrete and mortar and their test method

JC/T 870 Colored portland cement

JGJ 63 Standard of water for concrete

YBJ 205-1984 Technical requirements for blast furnace heavy crushed slag

for concrete use

3 Definitions, structures, symbols and abbreviations

The following terms and definitions apply to this standard.

4 Classification, specification and identification