| 摘要: |
| 研究了水胶比、粉煤灰掺量、激发剂掺量、减水剂掺量对混凝土抗压强度和抗渗性的影响。结果发现，掺入20 g/kg的石膏激发剂和35 g/kg的HA早强减水剂，即使粉煤灰掺量达到600 g/kg，混凝土的强度等级也能达到C15～C20，抗渗等级可达到W4以上，满足渠道衬砌对混凝土的技术要求。这表明，在渠道衬砌中应用大掺量粉煤灰混凝土是完全可行的，而且具有材源广、性能优和经济安全等方面的优势。 |
| 关键词: 粉煤灰混凝土 渠道衬砌 抗压强度 抗渗性 |
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| 基金项目:国家863节水重大专项(2002AA2Z4211)；西北农林科技大学专项基金项目 |
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| Study on properties of high fly-ash amount concrete for canal liner |
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| Abstract: |
| The effects of water-cement ratio,the amount of fly-ash,activator and superlasticizer on compressive strength and seepage resistance of concrete were studied.The results suggested that an addition of 20 g/kg stimulator,35 g/kg HA-1 water-reducer,600 g/kg fly-ash met the requirment of the compressive strength and anti-seepage of concrete used in canal liner. |
| Key words: fly-ash concrete canal liner comperssive strength seepage resistance |
