我们调查了与不同联合的杂质总数做的水泥的机械性质。而且,机制被测试的版本, CT,和坚硬探索。结果显示出那充分染色锈并且出现染色锈的沙岩聚集当沙岩总数在水泥的最终的紧张上有更多明显的影响时,在水泥的压缩力量上有重要不利影响。具体快克是更多对敏感沿着表面膨胀并且界面的转变微坚硬不同总数的地区在是的减少的趋势被评价沙岩,板岩, SR 沙岩,大理石,和 FR 沙岩。长像针的 ettringite 水晶和 Ca 的强壮的优先的生长趋势的簇生长(哦)2 晶体将导致水泥的地区范围分别地与充分染色锈的沙岩和云石总数做了的更宽的界面的转变。因此,杂质总数内容应该严格地在总数选择期间被控制。
We investigated mechanical properties of concretes made with impurity aggregates of different combinations. Besides the mechanisms were explored by EDS, CT, and hardness testing. The results showed that fully rust-stained and surface rust-stained sandstone aggregate had significant adverse impact on the compressive strength of concrete while sandstone aggregate had a much more obvious impact on the ultimate tension of concrete. Concrete crack was more prone to expand along surfaces and the micro-hardness of interfacial transition zone of different aggregates was ranked in decreasing trend as sandstone, slate, SR sandstone, marble, and FR sandstone. The cluster growth of long needle-like ettringite crystal and strong preferential growth trend of Ca(OH)2 crystals would result in wider interfacial transition zone range of concretes made with fully rust-stained sandstone and marble aggregate, respectively. Therefore, the impurity aggregate content should be strictly controlled during aggregate selection.