基于基本需水率法的砂浆堆积密实度测试及预测模型

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发布时间：2020-01-06 00:00:00

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基于基本需水率法的砂浆堆积密实度测试及预测模型

Test and Predictive Model of Mortar Packing Density Based on Basic Water Demand Rate Method

2023年第5期

砂浆；堆积密实度；基本需水率；多元线性回归；预测模型

Mortar; Packing density; Water demand rate; Multiple linear regression; Predictive model

2023年第5期

10.19761/j.1000-4637.2023.05.027.05

王辉，赵嘉兴，何世钦，刘旭辉

北方工业大学土木工程学院，北京 100144

王辉，赵嘉兴，何世钦，刘旭辉

王辉,赵嘉兴,何世钦,等.基于基本需水率法的砂浆堆积密实度测试及预测模型[J].混凝土与水泥制品,2023(5):27-31.

WANG H,ZHAO J X,HE S Q,et al.Test and Predictive Model of Mortar Packing Density Based on Basic Water-powder Ratio[J].China Concrete and Cement Product,2023(5):27-31.

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1000

摘要：基于基本需水率试验方法，测试了不同材料组成下砂浆的基本需水率和堆积密实度，分析了石粉含量、粉煤灰掺量、级配、体积砂率对砂浆堆积密实度的影响，建立了基于上述4个变量的砂浆基本需水率预测模型和堆积密实度预测模型，并通过试验验证了预测模型的准确性。此外，采用常用的湿测法对砂浆的堆积密实度进行了测试，其结果与所提出的基于基本需水率法的测试结果以及预测模型的计算结果吻合度较高，证明了基于基本需水率的砂浆堆积密实度测试方法的可行性。 Abstract: A test method based on the basic water demand rate was adopted to test the basic water demand rate and packing density of mortar under different material compositions, and the influences of limestone powder content, fly ash content, gradation and sand-mortar ratio on the packing density of mortar were analyzed. The prediction models of mortar basic water demand rate and packing density were established based on the above four variables, and the accuracy of the prediction models were verified by tests. In addition, the common wet packing method was used to test the packing density of mortar. The results are in good agreement with the test results of the method based on the basic water demand rate method and the calculation results of the prediction model. It is proved that the method based on the basic water demand rate is feasible.

英文名 : Test and Predictive Model of Mortar Packing Density Based on Basic Water Demand Rate Method

刊期 : 2023年第5期

关键词 : 砂浆；堆积密实度；基本需水率；多元线性回归；预测模型

Key words : Mortar; Packing density; Water demand rate; Multiple linear regression; Predictive model

刊期 : 2023年第5期

DOI : 10.19761/j.1000-4637.2023.05.027.05

文章编号 :

基金项目 :

作者 : 王辉，赵嘉兴，何世钦，刘旭辉

单位 : 北方工业大学土木工程学院，北京 100144

王辉，赵嘉兴，何世钦，刘旭辉

王辉,赵嘉兴,何世钦,等.基于基本需水率法的砂浆堆积密实度测试及预测模型[J].混凝土与水泥制品,2023(5):27-31.

WANG H,ZHAO J X,HE S Q,et al.Test and Predictive Model of Mortar Packing Density Based on Basic Water-powder Ratio[J].China Concrete and Cement Product,2023(5):27-31.

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摘要

参数

结论

参考文献

引用本文

Abstract: A test method based on the basic water demand rate was adopted to test the basic water demand rate and packing density of mortar under different material compositions, and the influences of limestone powder content, fly ash content, gradation and sand-mortar ratio on the packing density of mortar were analyzed. The prediction models of mortar basic water demand rate and packing density were established based on the above four variables, and the accuracy of the prediction models were verified by tests. In addition, the common wet packing method was used to test the packing density of mortar. The results are in good agreement with the test results of the method based on the basic water demand rate method and the calculation results of the prediction model. It is proved that the method based on the basic water demand rate is feasible.

关键词:

the

and

method

需水

demand

基本

砂浆

密实

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基于基本需水率法的砂浆堆积密实度测试及预测模型

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