基于分形理论的水泥砂浆强度预测模型_《混凝土与水泥制品》杂志社

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发布时间：2020-01-06 00:00:00

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基于分形理论的水泥砂浆强度预测模型

The Strength Prediction Model of Cement Mortar Based on Fractal Theory

2020年第6期

水泥砂浆；强度；预测模型；孔隙量；孔径分布；分形维数

Cement mortar; Strength; Prediction model; Porosity; Pore size distribution; Fractal dimension

2020年第6期

10.19761/j.1000-4637.2020.06.001.06

国家自然科学基金项目（51808027）；北京建筑大学科学研究基金项目（ZF14039）；市属高校基本科研业务费项目（X18117）。

金珊珊1,2，杨金龙1,2，索智1,2，杨柯南1,2

1.北京建筑大学土木与交通工程学院，100044；2.北京未来城市设计高精尖创新中心，100044

金珊珊1,2，杨金龙1,2，索智1,2，杨柯南1,2

金珊珊,杨金龙,索智,等.基于分形理论的水泥砂浆强度预测模型[J].混凝土与水泥制品,2020(6):1-5,12.

JIN S S,YANG J L,SUO Z,et al.The Strength Prediction Model of Cement Mortar Based on Fractal Theory[J].China Concrete and Cement Products,2020(6):1-5,12.

浏览量:

1000

摘要：测试了多组配合比砂浆不同龄期的强度及孔隙结构，引入基于热力学关系的分形模型计算得到了砂浆的孔表面积分形维数。利用统计学方法，探讨了孔隙量参数和孔径分布参数与砂浆抗压强度的定量关系，建立了同时考虑孔隙量和孔径分布的强度预测模型，采用该模型对多组配合比混凝土的抗压强度进行预测。结果表明，预测强度接近室内试验实测强度。Abstract:Thestrengthandporestructureofcementmortarwithdifferentproportionsatdifferentagesweremeasured.Thefractalmodelbasedonthethermodynamicrelationshipwasintroducedtocalculatetheporesurfacefractaldimensionofthecementmortar,whichcouldbeusedasoneofthecharacteristicparametersoftheporesizedistribution.Thequantitativerelationshipsbetweenthecompressivestrengthandtheporevolumeparametersandtheporesizedistributionparameterswerediscussedbystatisticalmethod.Thestrengthpredictionmodelwithconsiderationofbothporevolumeandporesizedistributionwaspresented.Thestrengthofconcretewithdifferentproportionswascalculatedbythestrengthpredictionmodel.Theresultsshowthecalculationstrengthapproachestothetestedstrength.Thestrengthpredictionmodelproposedinthisresearchcanbeappliedintheassessmentofthematerialstrengthofexistingconcretestructure.

英文名 : The Strength Prediction Model of Cement Mortar Based on Fractal Theory

刊期 : 2020年第6期

关键词 : 水泥砂浆；强度；预测模型；孔隙量；孔径分布；分形维数

Key words : Cement mortar; Strength; Prediction model; Porosity; Pore size distribution; Fractal dimension

刊期 : 2020年第6期

DOI : 10.19761/j.1000-4637.2020.06.001.06

文章编号 :

基金项目 : 国家自然科学基金项目（51808027）；北京建筑大学科学研究基金项目（ZF14039）；市属高校基本科研业务费项目（X18117）。

作者 : 金珊珊1,2，杨金龙1,2，索智1,2，杨柯南1,2

单位 : 1.北京建筑大学土木与交通工程学院，100044；2.北京未来城市设计高精尖创新中心，100044

金珊珊1,2，杨金龙1,2，索智1,2，杨柯南1,2

金珊珊,杨金龙,索智,等.基于分形理论的水泥砂浆强度预测模型[J].混凝土与水泥制品,2020(6):1-5,12.

JIN S S,YANG J L,SUO Z,et al.The Strength Prediction Model of Cement Mortar Based on Fractal Theory[J].China Concrete and Cement Products,2020(6):1-5,12.

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摘要

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结论

参考文献

引用本文

Abstract: The strength and pore structure of cement mortar with different proportions at different ages were measured. The fractal model based on the thermodynamic relationship was introduced to calculate the pore surface fractal dimension of the cement mortar, which could be used as one of the characteristic parameters of the pore size distribution. The quantitative relationships between the compressive strength and the pore volume parameters and the pore size distribution parameters were discussed by statistical method. The strength prediction model with consideration of both pore volume and pore size distribution was presented. The strength of concrete with different proportions was calculated by the strength prediction model. The results show the calculation strength approaches to the tested strength. The strength prediction model proposed in this research can be applied in the assessment of the material strength of existing concrete structure.

关键词:

水泥砂浆；强度；预测模型；孔隙量；孔径分布；分形维数

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基于分形理论的水泥砂浆强度预测模型

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