| 陈胡星,王尚贤,王述银,吴超寰.双膨胀水泥混凝土的膨胀性能[J].水利学报,2000,31(10):0052-0056 |
| 双膨胀水泥混凝土的膨胀性能 |
| Properties of double expansive concrete |
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| DOI： |
| 中文关键词: 双膨胀混凝土 自生体积变形 预压应力 |
| 英文关键词: double expansive concrete autogenous volume deformation prestress |
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| 中文摘要: |
| 双膨胀水泥是在中热和低热矿渣硅酸盐水泥基础上，同时利用了钙矾石与氧化镁二者的膨胀。本文对此种水泥拌制的混凝土的自生体积变形、在钢筋约束下的膨胀应力以及约束试件的强度进行了试验。结果表明，双膨胀水泥混凝土具有较好的微膨胀性，在早期与后期均能产生一定的膨胀，在钢筋约束条件下能够产生比较稳定的预压应力，约束试件的强度比没有约束时有所提高，适用于具有一定约束条件的水工混凝土。 |
| 英文摘要: |
| The properties of concrete composed of double expansive moderate heat Portland cement as well as the double expansive low heat protland slag cement are experimentally studied respectively. The autogenous volume deformation, prestress and strength are tested. The result shows that these kinds of concrete expand both in early and later stage, stable prestress can be obtained in condition of restricted by reinforcement. |
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