Author(s)

Kun Yu, Xiaohuan Lei, Licheng Sun, Long Xiong, Xing Li and Juxiang Xing

Corresponding Author

Kun Yu

ABSTRACT

The project is located on the northern of Malaiyia Johor Bahru, where is very little fly ash and coastal areas. Super-high single-admixture mineral powder system with high chloride ion impermeability was used on the mixing ratio design, but it has problems such as high hydration heat in early stage, difficulty in mineral powder storage, no compound admixture and so on. To address the above problems, ice water and raw materials cool down were used to reduce the early hydration temperature, powder hopper waitting for cooling was used to expand the storage capacity of low-temperature powder, the admixtures possess retarded components was used to control the early hydration process, and an emergency cooling plan is adopted to ensure the concrete quality during the high temperature period. The temperature control effect is obviously according to the above technical scheme of mass transfer layer concrete poured, which the surface is smooth and clean without obvious cracks after mold removal.

KEYWORDS

Single-admixture, mineral powder, cooling plan, temperature control