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EFFECT OF CURING CONDITION ON STRENGTH OF CONCRETE WITH DIFFERENT CERAMSITE CONTENT
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摘要: 研究了不同水灰比的普通混凝土、混合骨料混凝土和轻骨料混凝土在不同养护条件下的强度发展规律，同时还对混凝土内部相对湿度进行了测定。结果表明，室外自然养护条件下，普通混凝土28 d后强度几乎不再增长;标准养护条件下，掺加陶粒的低水灰比混凝土后期强度增长率较高;水中养护条件下，陶粒自养护作用对混凝土强度增长的贡献较低。Abstract: The strength development law of normal weight,combined aggregate and lightweight aggregate concretes as well as the internal relative humidity of concrete under different curing conditions were studied.The results show that,under outdoor natural curing condition,the strength of normal weight concrete has little increase after 28d.Under standard curing condition,the concrete with low water-cement ratio containing ceramsite has higher growth rate of long-term strength.Under water curing condition,the contribution of self-curing effect of ceramsite to the growth of the concrete strength is lower.
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Key words:
- curing condition /
- strength /
- relative humidity /
- ceramsite /
- water-cement ratio
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姚明甫,詹炳根.高性能混凝土的养护[J].工业建筑,2006,36(4): 70-72. [2] 刘红宇.养护方法对高强混凝土强度的影响[J].山西建筑,2001,27(3): 85-86. [3] 郭向勇,方坤河,冷发光,等.环境条件对高强混凝土性能影响的试验研究[J].长江科学院院报,2005,22(2): 57-59. [4] 王国川,王庆华.浅谈养护条件对混凝土强度及耐久性的影响[J].河南建材,2008(4): 52-53. [5] 陈会凡,王浩.自养护高强混凝土的试验研究[J].粉煤灰综合利用,2006(2): 10-12. [6] Pickett G.The Effect of Change in Moisture Content on the Creepof Concrete Under a Sustained Load [J].American ConcreteInstitute Journal,1942,36:333-335. [7] Person B.Moisture in Concrete Subjected to Different Kinds ofCuring[J].Materials and Structures,1997,30 (203): 533 －544. -
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