【摘要】 采用温度应力试验机(TSTM)试验方法,对比研究了膨胀剂在普通水泥混凝土与高掺量粉煤灰混凝土中的作用效果,包括自由条件下的膨胀率及完全约束条件下的压应力发展。结果表明:在本试验条件下,粉煤灰与膨胀剂复合使用,发挥出超叠效应。更多还原

【Abstract】 Results of tests performed on the effect of expansive agent in normal concrete and high volume fly ash concrete are presented.The expansive deformation ratio without restraint and the self-compressive stress under complete restraint are investigated in the tests with temperature-stress test machine(TSTM).The results indicate that combination of fly ash and expansive agent may produce a synergistic effect on the concrete under the specific condition.更多还原