CN201310032278
CN103134831A
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摘要:本发明公开了一种基于多尺度模型的普通水泥净浆早龄期导热系数预测方法。本发明方法包括,根据普通水泥净浆早龄期微观结构及组成进行多相多尺度划分,每种尺度上包含典型物相,然后计算不同龄期不同物相的体积百分数,再根据各尺度上每种物相的体积百分含量、导热系数等参数,通过向上均匀化和广义自洽方法计算得到早龄期水泥净浆的导热系数。本发明考虑了普通水泥净浆早龄期微观结构形成与演变及组成材料的性能对水泥净浆宏观导热系数的影响,考虑的影响因素全面合理,且形式简单,使用方便。根据该方法构建的预测模型可较为准确的预测不同水灰比、不同种类水泥、不同养护温度下的早龄期水泥净浆的导热系数。 |
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Abstract: The invention discloses an ordinary clean cement paste of early age thermal conductivity coefficient prediction method based on a multi-scale model. The ordinary clean cement paste early-age thermal conductivity coefficient prediction method based on the multi-scale model includes that heterogeneous and multi-scale division is conducted according to a micro-structure and composition of ordinary clean cement paste in an early age, a typical phase is contained at each scale, volume percentages of different ages and phases are calculated, and thermal conductivity coefficients of the clean cement paste in the early age are calculated and obtained through an upward homogenization and generalized self-consistent method according to parameters of volume percentage of each phase, thermal conductivity coefficients and the like at each scale. Influences of clean cement paste early-age micro-structure formation and evolution, and performance of component materials on clean cement paste macroscopic thermal conductivity coefficients are considered, influence factors considered are comprehensive and reasonable, and the ordinary clean cement paste early-age thermal conductivity coefficient prediction method based on the multi-scale model is simple in form and convenient to use. The thermal conductivity coefficients of the clean cement paste in the early age with different water-cement ratios, different kinds of cement, and different curing temperatures can be predicted more correctly according to a prediction model built with the ordinary clean cement paste early-age thermal conductivity coefficient prediction method based on the multi-scale model. | |
申请人: 河海大学 | |
Applicant: UNIV HOHAI | |
地址: 210098 江苏省南京市鼓楼区********(隐藏) | |
发明(设计)人: 赵海涛 吴胜兴 魏珍中 张风臣 曹秀丽 陈育志 骆勇军 王溢 唐易民 朱晓琳 | |
Inventor: ZHAO HAITAO; WU SHENGXING; WEI ZHENZHONG; ZHANG FENGCHEN; CAO XIULI; CHEN YUZHI; LUO YONGJUN; WANG YI; TANG YIMIN; ZHU XIAOLIN | |
主分类号: G01N25/18(2006.01)I | |
分类号: G01N25/18(2006.01)I | |
2015-08-26 | 发明专利申请公布后的视为撤回IPC(主分类):G01N 25/18申请公布日:20130605 |
2013-07-10 | 实质审查的生效IPC(主分类):G01N 25/18申请日:20130128 |
2013-06-05 | 公开 |
主权项 | 基于多尺度模型的普通水泥净浆早龄期导热系数预测方法,其特征在于,包括以下步骤:步骤A、将普通水泥净浆按照微观结构组成划分为不同尺度,每个尺度包含不同典型物相;步骤B、获取早龄期各时刻各尺度中各物相的体积百分含量;步骤C、从最小尺度开始,采用向上逐步均匀化和广义自洽方法,计算早龄期t时刻普通水泥净浆各尺度的导热系数;其中,均匀化采用两两复合的方式,具体如下:从参与均匀化的物相中取两种分别作为基体和夹杂进行复合,并计算其所复合成的复合相的导热系数;以上述复合相和其它一种参与均匀化的物相分别作为基体和夹杂进行复合,并计算其所复合成的复合相的导热系数;依此类推,直到参与均匀化的物相均完成复合,最后得到的复合相的导热系数即为均匀化后的物相的导热系数;其中,两种物相的复合相的导热系数按照以下公式计算: |
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公开号 | 103134831A | ||||||||||||||||||
公开日 | 2013-06-05 | ||||||||||||||||||
专利代理机构 | 南京经纬专利商标代理有限公司 32200 | ||||||||||||||||||
代理人 | 杨楠 | ||||||||||||||||||
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类型 | 阶段 | 文献号 | 公开日期 | 涉及权利要求项 | 相关页数 |
A | SEA | CN101609057A | 20091223 | 1-7 | 全文 |
A | SEA | JPH1123504A | 19990129 | 1-7 | 全文 |
A | SEA | CN201247211Y | 20090527 | 1-7 | 全文 |
类型 | 阶段 | 期刊文摘名称 | 作者 | 标题 | 涉及权利要求项 | 相关页数 |
Y | SEA | 《International Communications in HEAT and MASS TRANSFER》20060228332 | Yung-Ming Lee, et al | A generalized self-consistent method for calculation of effective thermal conductivity of composites with interfacial contact conductance | 1-7 | 第143页第1段及倒数第2段,第144页倒数第1段,第147页第1段,以及公式(28) |
YUNG-MING LEE, ET AL: "A generalized self-consistent method for calculation of effective thermal conductivity of composites with interfacial contact conductance", 《INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER》, vol. 33, no. 2, 28 February 2006 (2006-02-28) | ||||||
Y | SEA | 《江苏大学学报(自然科学版)》20110731324 | 孙国文等 | 多尺度预测氯离子在硬化水泥浆体中的有效扩散系数 | 1-7 | 第469页左栏第3-6段,右栏第1-2段,第470页左栏,以及第2.3节 |
孙国文等: "多尺度预测氯离子在硬化水泥浆体中的有效扩散系数", 《江苏大学学报(自然科学版)》, vol. 32, no. 4, 31 July 2011 (2011-07-31) | ||||||
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