核电工程铁铝酸盐水泥高性能混凝土配制技术研究  

Research on preparation technology of ferroaluminate cement high performance concrete in nuclear power engineering

作　　者：宋丰伟 齐冬有 邱开建 向世文 刘立 张华英 张巍 李长成 王振锋 SONG Fengwei;QI Dongyou;QIU Kaijian;XIANG Shiwen;LIU Li;ZHANG Huaying;ZHANG Wei;LI Changcheng;WANG Zhengfeng(CNNP Guodian Zhangzhou Energy Co.,Ltd.,Zhangzhou 363309;Technical Supervision&Research Center for China Building Materials Industry,Beijing 100024;Chinese Nuclear Construction Concrete Co.,Ltd.,Xi’an 710016)

机构地区：[1]中核国电漳州能源有限公司,福建漳州363309 [2]建筑材料工业技术监督研究中心,北京100024 [3]中核混凝土股份有限公司,陕西西安710016

出　　处：《中国建材科技》2024年第5期10-13,共4页China Building Materials Science & Technology

基　　金：国家重大专项(2021TLSF001)。

摘　　要：基于铁铝酸盐水泥的性能特点,选取不同的单位用水量、砂率及矿物掺合料掺量配制了系列铁铝酸盐水泥混凝土,并通过专项试验,研究单位用水量、砂率及矿物掺合料掺量等设计指标对铁铝酸盐水泥混凝土工作性能和基本力学性能的影响规律。结果表明,兼顾混凝土的施工性能和抗压强度,铁铝酸盐水泥混凝土的最佳单位用水量为170kg/m^(3);建议砂率取值范围为38%~40%;粉煤灰的最佳掺量范围为20%~25%;掺硅灰可显著降低铁铝酸盐水泥高性能混凝土的粘性,单方混凝土建议掺量为15~30kg/m^(3);为确保满足泵送施工要求,铁铝酸盐水泥混凝土的出机坍落度宜控制在190~220mm。Based on the performance characteristics of ferroaluminate cement,a series of ferroaluminate cement concrete are prepared with different unit water consumption,sand rate and mineral admixture content.The influence of design indexes such as unit water consumption,sand rate and mineral admixture content on the working performance and basic mechanical properties of ferroaluminate cement concrete are studied through special experiments.The results show that considering the construction performance and compressive strength of concrete,the optimal unit water consumption of ferroaluminate cement concrete is 170 kg/m^(3).The recommended sand rate ranges from 38%to 40%.The optimal dosage range of fly ash is 20%to 25%.Adding silica fume can significantly reduce the viscosity of ferroaluminate cement high 3 performance concrete,and the recommended dosage is 15~30 kg/m per cubic meter of concrete.In order to meet the requirements of pumping construction,the outlet slump of ferroaluminate cement concrete should be controlled between 190~220 mm.

关 键 词：核电工程 铁铝酸盐水泥 高性能混凝土 配制技术 

分 类 号：TU528.45[建筑科学—建筑技术科学]