Optimization analysis of mix proportion of super high pump concrete
QIN Huanchao
Abstract：Under the premise of meeting the relevant requirements of "Technical Specification Concrete Pumping" JGJ/T 10—2011,the problem of pipeline blockage is still often occurred in the pumping process of the super high rise concrete structure. Based on the actual engineering cases,the concrete mix proportion is optimized and analyzed,and the more suitable concrete mix ratio of three is obtained,and related concrete properties before and after pumping are also investigated. The test results show when the concrete is mixed with 15% fly ash and 5% graphite powder,and 21.25% zeolite powder,the concrete slump in the actual con-struction reached 230 mm,concrete pump has good performance and strength to meet the design requirements. The fluidity of con-crete decreases,the strength increases,and the permeability of chloride ion is enhanced.
Keywords：super high-risepumping concretemix proportionfluidity
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 33-35,55 )