对聚丙烯腈纤维增强水泥砂浆和混凝土的早期阻裂性能进行了试验研究。
Tests of restrained initial shrinkage properties with plain and polyacrylonitrile fiber reinforced concrete and mortar are introduced in this paper.
本文首先对混凝土及其组成材料：水泥砂浆、粗骨料和两者的交界面的动态力学性能的研究历史和现有研究成果作了系统的总结。
This thesis summarized the research history and achievements on the dynamic property of concrete and its component materials: cement mortar, aggregate and the interface between them.
最终运用本模型对加载龄期和粗骨料、水泥砂浆比参数进行了分析，给出了粉煤灰混凝土徐变的规律。
Finally using the model loading age and coarse aggregate, cement ratio parameters were analyzed, and the laws of fly ash concrete creep are present.
靶体为水泥砂浆石靶、钢纤维混凝土靶和含单层密排刚玉球的钢纤维混凝土靶。
These concrete targets are cement mortar, steel fiber reinforced concrete (SFRC) and the SFRC with a board made by tightly arranged corundum spheres inside.
从提高混凝土强度和密实性出发，采用“PIC”法对水泥砂浆试块进行试验和研究。
From increasing the strength and density of concrete to start, the test and research were carried out for the sample of cement mortar by using PIC method in this paper.
当长杆射弹和撞击速度都相同时，与侵彻钢纤维混凝土靶相比，含单层密排刚玉球的钢纤维混凝土靶中的侵彻深度大约降低了11%，而水泥砂浆石靶中的侵彻深度增加了12%。
The penetration depth into SFRC with the board is decreased about 11%, but the penetration depth into cement mortar is increased about 12% as compared with that into the SFRC.
粗骨料的引入使碳纤维混凝土力学和压敏性能较碳纤维水泥砂浆有较大的不同。
The mix proportion and the measurement method of the carbon-fiber reinforced concrete are introduced in this paper.
开裂应力测定装置测试了水泥砂浆、混凝土塑性抗拉强度和塑性收缩开裂应力。
The paper states that the plastic cracks after shaped the pumping concreting divides into plastic settlement crack and plastic shrinkage crack.
开裂应力测定装置测试了水泥砂浆、混凝土塑性抗拉强度和塑性收缩开裂应力。
The paper states that the plastic cracks after shaped the pumping concreting divides into plastic settlement crack and plastic shrinkage crack.
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