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中文摘要：
针对粉煤灰的显著特性及其在工程中的广泛应用，经对工程充分调查、材料成分分析和配合比设计，以水胶比、粉煤灰掺量和砂率为变化参数，采用正交试验法对高掺量粉煤灰混凝土进行试验研究．并对各影响因素进行了深入分析．结果表明，水胶比、粉煤灰取代率是影响混凝土性能的主要因素，砂率对混凝土的流动性和强度影响较大．同时，得出在高掺量粉煤灰状况下各影响因数与混凝土性能的相关关系及其变化规律，可供理论研究和工程实践参考．
英文摘要：
With the notable characters of fly ash and its application in the engineering fields, on the basis of the adequate surveys on projects, composition of materials and mixing ratio design, the the water gel rate, the fly ash replacement rate and the sand rate were taken as variable parameters, orthogonal design method is adopted to study high fly ash Concrete, and the influential factors are analyzed deeply. Results from analysis indicate that the water gel rate and fly ash replacement rate are the main factors effected to the concrete and the sand rate has influence to the concrete strength and the flow property of the concrete. At the same time, the correlation and the law of variation between the performance of high fly ash Concrete and influential factors are introduced, which can be referred in the theoretic Investigation and design of engineering.
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