In the section of "Concrete work", there is a requirement that the construction contractor must submit a list of mix calculations to the design contractor (a joint venture of Forum Architects Co., Ltd. and Meinhardt (Thailand) Co., Ltd.) for consideration and approval, and have an engineer sign the certification. For the section of "mixing and pouring concrete" in the construction of various structures, use ready-mixed concrete (Ready Mixed Concrete) that has been certified by the industrial product standards (TIS 213), such as CPAC, TPI, Nakornluang Concrete Co., Ltd., and there is also a requirement that other types of concrete can be used if it is not suitable, then ready-mixed concrete will be used.
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