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超低温下高强砂浆强度发展 被引量：13

Strength Development of High Strength Mortar at Very Low Temperature
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摘要 研究了在-110℃超低温养护时间与含水率等因素对水灰比为0.31的高强砂浆的抗压和抗折强度发展的影响,采用最小二乘法非线性拟合法研究并提出了高强砂浆在超低温下强度发展方程。结果表明:高强砂浆在超低温下抗压强度与抗折强度均可以表示为超低温养护时间和含水率的函数关系,与超低温养护时间成指数关系,而与含水率成二次函数关系;含水率对高强砂浆超低温下抗折强度的影响大于其对超低温下抗压强度的影响。 Effects of curing time at -110℃and moisture content on the compressive strength and flexural strength of high strength mortar in a water to cement ratio of 0.31 were investigated.The equation of strength development of high strength mortar at -110℃was proposed via a nonlinear least square method.The results indicate that the compressive and flexural strength of high strength mortar at -110℃can be determined by a function with curing time at -110℃and moisture content.There exists a quadratic relationship between strength and moisture and an exponential relationship between strength and curing time at -110℃.The influence of moisture content on the flexural strength of mortar at rather low temperature is more intensive than that on the compressive strength.
作者 蒋正武 李雄英 张楠
机构地区 同济大学
出处 《硅酸盐学报》 EI CAS CSCD 北大核心 2011年第4期703-707,共5页 Journal of The Chinese Ceramic Society
基金 国家自然科学基金(51078269) 国家科技支撑计划(2011BAE14B06)资助项目
关键词 强度 超低温 养护时间 含水率 最小二乘法 strength ultra low temperature curing time moisture content least square method
分类号 TU502 [建筑科学—建筑技术科学]
  • 相关文献

参考文献12

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二级参考文献13

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共引文献32

同被引文献169

  • 1肖福根,庞贺伟.月球地质形貌及其环境概述[J].航天器环境工程,2003,20(2):5-14. 被引量：15
  • 2谢剑,吴洪海.超低温冻融循环作用下的混凝土强度[J].土木建筑与环境工程,2012,34(S2):165-168. 被引量：9
  • 3蒋正武,王莉洁.钢筋混凝土的环境侵蚀与表面防护技术[J].腐蚀科学与防护技术,2004,16(5):309-312. 被引量：27
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引证文献13

二级引证文献41

硅酸盐学报
2011年 第4期

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