1) large amount of high calcium fly-ash
大掺量高钙粉煤灰
1.
The tests indicate that the axial compressive strength,tensile strength and the elastic module of the RCC with large amount of high calcium fly-ash increase about 10% than that of the common fly-ash concrete,while their limited tensile strains are equivalent.
试验发现,大掺量高钙粉煤灰碾压混凝土抗压强度、轴拉强度和弹性模量比普通粉煤灰混凝土提高10%,极限抗拉应变两者相当。
2) high-volume fly ash
大掺量粉煤灰
1.
Some existing problems and solution of high-volume fly ash concrete
大掺量粉煤灰混凝土存在的问题和可能的解决方案
2.
The application of cement mortar with high-volume fly ash(fly ash Ⅲ take the place of petty grit) is an efficient approach to reduce the pollution of waste matter from coal firing,and solves the shorting of natural sand.
大掺量粉煤灰水泥砂浆的应用(粉煤灰代替细砂),是减轻燃煤废料污染、缓解天然砂缺少危机的有效途径。
3.
Following a review of the researches in fly ash concrete at home and abroad and an analysis of its application at present, the thesis demonstrates the purpose and significance of research in high-performance high-volume fly ash concrete and then focuses on the key issues of the research.
本文首先回顾了国内外粉煤灰混凝土的发展研究情况和应用现状,指出研究大掺量粉煤灰高性能混泥土的目的和意义,然后提出了大掺量粉煤灰高性能混凝土研究内容、思路以及课题研究的关键。
3) high volume fly ash
大掺量粉煤灰
1.
The cement-aggregate ratio and water-cement ratio of high volume fly ash simultaneous grouting mortar with high workability has been obtained by the optimal design of cement mortar mixing ratios and by adding fly ash,bentonite and water-reducing agent.
通过掺加粉煤灰、膨润土、高效减水剂等措施,对盾构法同步注浆用水泥砂浆配合比进行优化设计,探讨了粉煤灰掺量、减水剂种类和掺量、水胶比、胶砂比等与流动度、结石体3 d、14 d、28 d抗压强度、凝结时间之间的关系,得到具有高工作性的大掺量粉煤灰同步注浆材料。
2.
This Study uses two different types of cement named Xiaoyetian and secondary fly ash to carry on experiments on high volume fly ash concrete compared with small volume fly ash.
结果表明:粉煤灰的掺量在一定范围内,大掺量粉煤灰混凝土的流动性比小掺量的混凝土好,坍落度损失要小;大掺量粉煤灰混凝土的早期强度较低,但是后期的强度有明显的增长;大掺量粉煤灰混凝土与小掺量的混凝土抗渗、抗冻、碳化性能相差不大,可用于对耐久性要求不高的工程,而且具有很好的经济效益和社会效益。
3.
High volume fly ash(HVFA)concrete were adopted for the massive foundation slab of Tianjin Tower by choosing suitable raw materials and mix proportion.
通过合理的原材料优选和配合比设计,将大掺量粉煤灰混凝土用于天津津塔底板工程中。
4) high content of fly ash
大掺量粉煤灰
1.
Experimental research on the using of FJ1-activator in high strength concrete with high content of fly ash;
FJ1型激发剂在大掺量粉煤灰高强混凝土中的应用试验研究
2.
The role of superfine blast-furnace slag in the admixture with high content of fly ash;
大掺量粉煤灰掺合料中超细矿渣的作用
5) a large amount of fly ash
大掺量粉煤灰
1.
The uniform design experimental research of a large amount of fly ash self-compaction concrete;
大掺量粉煤灰免振捣混凝土的均匀试验研究
2.
High strength concrete with a large amount of fly ash;
大掺量粉煤灰高强混凝土研究
6) high content fly ash
高掺量粉煤灰
1.
Test and evaluation on fracture characteristic of high content fly ash concrete;
高掺量粉煤灰混凝土断裂特征的测试与评价
2.
Using mire and fly ash produce high content fly ash sintered brick is an effective way for developing new wall material that can save energy,make use of waste and protect environment.
用淤泥和粉煤灰生产高掺量粉煤灰烧结砖,节能利废、保护环境,是开发新型墙体材料的一个有效途径。
补充资料：粉煤灰硅酸盐水泥
分子式：
CAS号：
性质：由硅酸盐水泥熟料、粉煤灰、适量石膏磨细制成的水硬性胶凝材料，代号P·F，中国主要水泥品种之一。粉煤灰掺加量为20％～40％(wt)，标号分275、325、425、425R、525、525R、625R七个等级。性能和火山灰水泥相似，但需水性及干缩性较小，抗裂性较好，水化热较低，抗蚀性也较好。适用于一般的工业和民用建筑，尤其适用于大体积水工混凝土以及地下和海港工程等。
CAS号：
性质：由硅酸盐水泥熟料、粉煤灰、适量石膏磨细制成的水硬性胶凝材料，代号P·F，中国主要水泥品种之一。粉煤灰掺加量为20％～40％(wt)，标号分275、325、425、425R、525、525R、625R七个等级。性能和火山灰水泥相似，但需水性及干缩性较小，抗裂性较好，水化热较低，抗蚀性也较好。适用于一般的工业和民用建筑，尤其适用于大体积水工混凝土以及地下和海港工程等。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条