Various curing condition and different amount of water evaporated in early-age curing would lead to different strength of concrete.
早期养护条件不同,混凝土失水量不同,则混凝土中后期强度也不相同。
For the concrete which losing water is little at early-age, strengthen curing, the strength of concrete will be compensated.
对早期失水较少的混凝土,加强湿养护,混凝土强度能得到较大的补偿。
The accuracy of the curve is tested and verified by the practical engineering, and the curve can be used as the curve for early-age ground slag concrete strength by rebound method in Zhengzhou.
经工程实践验证了该曲线的测试精度,建议可作为郑州市早龄期磨细矿渣混凝土回弹法的专用测强曲线。
On the basis of spot sample and laboratory experiment, authors studied the time-variant probability model early age period mechanical properties of high-strength concrete.
通过现场试验建立了高强度混凝土早龄期力学性能的经时概率模型。
Result show that the more the loss of water at early-age, the lower strength of concrete acquired.
研究结果表明,早期失水越多,混凝土中后期强度越低。
Drill several cores at different ages of the early age concrete, then measure its flexural strength, take this flexural strength as the anti-cracking limits.
对早龄期混凝土取芯,测出其弯拉强度,作为抗裂限值。
The effects of this admixture on early-age shrinkage properties of concrete and cement mortar strength were investigated in this paper.
对混凝土减缩防水密实剂对混凝土的早期收缩性能及对水泥胶砂强度的影响进行了试验研究。
The results show that the early strength and the permeability of concrete can be improved effectively, and the hydration heat can be reduced and the hot peak value at the early age can be postponed.
结果表明:掺加激发剂能有效改善大掺量粉煤灰混凝土早期强度低的问题,而且可以在降低水泥水化热的同时,延缓混凝土早期放热峰值的出现,并使混凝土具有良好的抗渗性能。
Many research achievement have been acquired mainly on the studies of after-hardened volume stability of high-strength concrete and it's early-age cracking.
现有研究主要集中在对高强混凝土硬化后的体积稳定性及其开裂方面,取得了较多的成果。
Many research achievement have been acquired mainly on the studies of after-hardened volume stability of high-strength concrete and it's early-age cracking.
现有研究主要集中在对高强混凝土硬化后的体积稳定性及其开裂方面,取得了较多的成果。
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