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High-performance concrete is a new type of building materials , with the rapid development in recent years, high-speed rail , high-performance concrete made ??more widely used . As one of the high-performance concrete three properties : high , high durability , high strength , more and more attention , and it provides a guarantee to the durability of high performance concrete . In this paper, the Beijing-Shanghai high-speed railway using high performance concrete , the rheology theory analysis of high-performance concrete work and test data analysis by the water -cement ratio , sand ratio , admixtures , and mineral admixture for high performance concrete the impact of the work ; through the analysis of of pumping concrete nature of the high-performance concrete slump loss test data to verify the high performance concrete pump . The main findings are as follows : 1, the analysis of the tests currently used method of high-performance concrete work , not a way to directly measure the concrete work , determination of the slump method in this paper , the method is generally practical engineering the methods used ; 2 , from the rheological point to the analysis of high-performance concrete , through theoretical analysis to determine a new mix of high-performance concrete is a Bingham body by two rheological parameters , yield stress and plastic viscosity to characterization of its work ; experiment showed that the water -cement ratio , sand ratio , admixtures , and mineral admixture of high - performance concrete work . Decreasing water -cement ratio , workability deteriorates and there is an optimal dosage ; the sand rate the dosage ; admixture content saturation point ; the mineral admixture incorporation can change the high-performance concrete ; 4 , passenger Line pier body cap , bearing pad stone , box girder , etc. , high-performance concrete pumping construction , the paper analyzes the nature of the pumping concrete , high performance concrete are met by the test data to draw high-performance concrete slump loss smaller , high-performance concrete pumping construction can take .
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