摘要
本文论证了碾压混凝土浇筑层面间歇时间以初凝时间来控制的合理性。着重分析了缓凝剂在碾压混凝土中的作用,提出在高气温或掺入具有快凝性混合材料的混凝土必须添加相应的缓吸剂,方能达到设计施工要求,并对掺入缓凝剂后碾压混凝土的性能进行了较为全面的试验研究,为碾压混凝土筑坝提供了可靠依据。
This paper proves the rationality of the intermittent time for pouring layer surface ofroller compacted concrete in control of the initial setting time, emphatically analyses the action of theretarder in roller compacted concrete,and proposes that it is necessary to add relevant retarder if it isin the high atmospheric temperature or when the mixed material for setting is added into concrete, thusthe design and construction requirements can be fulfilled. Additionally, an overall experimental re-search on performance of roller compacted concrete with retarder has been under-taken and it providesreliable scientific basis for the construction of roller compacted concrete dam.
出处
《工业建筑》
CSCD
北大核心
1992年第3期11-13,18,共4页
Industrial Construction
