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赤泥-石膏复合激发剂改性蒸养粉煤灰混凝土力学性能和长期性能研究 被引量:1

Study on mechanical properties and long term properties of steam-cured fly ash concrete with activating agent
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摘要  试验研究了赤泥-石膏复合激发剂对蒸养粉煤灰混凝土力学性能和长期性能的影响。结果表明,经激发剂改性后蒸养粉煤灰混凝土脱模抗压强度得到显著的提高,弹模、抗折、劈拉强度均得到不同程度的提高;干缩值得到降低,抗渗性能明显改善。 The effect of activating agent on mechanical properties and long-term properties of steam-cured fly ash concrete is studied by experiments in this paper.The results show that the addition of activating agent into steam-cured concrete blended 40% fly ash is effective in improvement of its compressive strength at demolding,as well as the elastic modulus,flexural strength,tensile-splitting strength,and also permeability and shrinkage of steam-cured fly ash concrete can be improved by the activating agent.
出处 《混凝土》 CAS CSCD 2004年第6期44-46,57,共4页 Concrete
关键词 蒸养 粉煤灰 混凝土 激发剂 力学性能 长期性能 steam curing fly ash concrete activation mechanical properties long term properties
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参考文献3

  • 1[2]C. D. Lawrence. Mortar expansions due to delayed ettringite formation effects of curing period and temperature. Cement and Concrete Research, 1995, 25(4) :903 - 914.
  • 2[3]Knut O. Kjellsen, Detwiler Rachel, J. Gjorv Odd E. Development of microstructures in plain cement pastes hydrated at different temperatures.Cement and Concrete Research, 1991,21(1) :179 - 189.
  • 3[4]铁道部丰台桥梁工厂,铁道部科学研究院铁建所.混凝土的蒸汽养护.北京:中国建筑工业出版社,1978,3.

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