1, improve basic provisions of acceptance. 2, add provision of inspection lot expansion of certified products or continuous qualified products. 3, delete provisions for acceptance of template deismantle. 4, add provisions for acceptance of moulded rebar and other rebar new technologies. 5, add provisions for acceptance of unbonded prestressed steel fully enclosed waterproof performance. 6, improve provisions for site acceptance of premixed concrete. 7, , improve provisions for site acceptance of precast components. 8, add provisions for acceptance of objects which has deviation in structures position and dimension. 9, add a method of checking structural entity concrete strength through rebound-drilled core method.
Code for acceptance of constructional quality of concrete structures GB50204-2015 in line with the requirements of Note on the issuance of 2011 code making and plan revising of engineering construction standards ( building standards[2011]No.17) issued by Ministry of Housing and Urban-Rural Development, this code is made by China Academy of Building Research and related institutes after extensive research, conscientiously summing up the experience in engineering practices, with reference to international standards and foreign advanced standards for, and on the basis of public opinions. This code has 10 chapters and six appendices. The main contents are: General principles, terminology, basic provisions, sub-project template, sub-project rebar , sub-project prestress, sub-project concrete, sub-project cast-in-place structure, sub-project prefabricated structure, sub-project concrete structure. The context is similar to the previous version of Code for acceptance of constructional quality of concrete structures GB50204-2002 (2011version) This code comes into force in September 1st, 2015. Wherein the 4.1.2,5.2.1,5.2.3,5.5.1,6.2.1,6.3.1,6.4.2,7.2.1,7.4.1articles, as mandatory provisions must be strictly enforced.
