热重分析法在混凝土碳化深度检测中的应用_《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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热重分析法在混凝土碳化深度检测中的应用

Application of Thermogravimetric Analysis Method in Detecting Carbonation Depth of Concrete

2020年第10期

碳化反应区；定量分析；热重分析法（TGA）；混凝土

Carbonation reaction zone; Quantitative analysis; Thermogravimetric analysis（TGA）; Concrete

2020年第10期

10.19761/j.1000-4637.2020.10.080.04

浙江省青年科学基金项目（LQ19E080020）；973计划项目（2015CB655103）。

李蓓1,2，金南国2，田野2，金贤玉2，李鑫燚1

1.浙江水利水电学院建筑工程学院，浙江杭州 310018；2.浙江大学建筑工程学院，浙江杭州 310058

李蓓1,2，金南国2，田野2，金贤玉2，李鑫燚1

Abstract: In view of the phenolphthalein method cannot accurately measure the concrete carbonation degree, based on the experimental principle of quantitative analysis of CaCO3 content by thermogravimetric method, the carbonation depth of concrete under different water cement ratio and age conditions was tested by TA-Q500 thermogravimetry analyzer under the same raw materials, and the specific operation steps of the method were described. The results show that compared with the phenolphthalein reagent method, the thermogravimetry method can quantitatively analyze the content of Ca(OH)2 and CaCO3 in carbonated concrete, which has the characteristics of rapidity and convenience, and is less affected by the environment and human factors, and the test results are relatively stable and accurate.

李蓓,金南国,田野,等.热重分析法在混凝土碳化深度检测中的应用[J].混凝土与水泥制品,2020(10):80-82,86.

LI B,JIN N G,TIAN Y,et al.Application of Thermogravimetric Analysis Method in Detecting Carbonation Depth of Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):80-82,86.

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摘要：针对现有酚酞试剂法无法精确测定混凝土碳化程度的不足，基于热重法定量分析CaCO3含量的试验原理，利用TA-Q500热重分析仪在原材料相同的条件下对不同水灰比及龄期条件下的混凝土碳化深度进行了检测，并阐述了该方法的具体操作步骤。结果表明：与酚酞试剂法相比，热重分析法可以定量分析碳化混凝土中的Ca(OH)2 和CaCO3含量，具有快速、方便的特点，且受环境和人为因素的影响较小，测试结果相对稳定准确。 Abstract: In view of the phenolphthalein method cannot accurately measure the concrete carbonation degree, based on the experimental principle of quantitative analysis of CaCO3 content by thermogravimetric method, the carbonation depth of concrete under different water cement ratio and age conditions was tested by TA-Q500 thermogravimetry analyzer under the same raw materials, and the specific operation steps of the method were described. The results show that compared with the phenolphthalein reagent method, the thermogravimetry method can quantitatively analyze the content of Ca(OH)2 and CaCO3 in carbonated concrete, which has the characteristics of rapidity and convenience, and is less affected by the environment and human factors, and the test results are relatively stable and accurate.

英文名 : Application of Thermogravimetric Analysis Method in Detecting Carbonation Depth of Concrete

刊期 : 2020年第10期

关键词 : 碳化反应区；定量分析；热重分析法（TGA）；混凝土

Key words : Carbonation reaction zone; Quantitative analysis; Thermogravimetric analysis（TGA）; Concrete

刊期 : 2020年第10期

DOI : 10.19761/j.1000-4637.2020.10.080.04

文章编号 :

基金项目 : 浙江省青年科学基金项目（LQ19E080020）；973计划项目（2015CB655103）。

作者 : 李蓓1,2，金南国2，田野2，金贤玉2，李鑫燚1

单位 : 1.浙江水利水电学院建筑工程学院，浙江杭州 310018；2.浙江大学建筑工程学院，浙江杭州 310058

李蓓1,2，金南国2，田野2，金贤玉2，李鑫燚1

李蓓,金南国,田野,等.热重分析法在混凝土碳化深度检测中的应用[J].混凝土与水泥制品,2020(10):80-82,86.

LI B,JIN N G,TIAN Y,et al.Application of Thermogravimetric Analysis Method in Detecting Carbonation Depth of Concrete[J].CHINA CONCRETE AND CEMENT PRODUCTS,2020(10):80-82,86.

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摘要

参数

结论

参考文献

引用本文

摘要：针对现有酚酞试剂法无法精确测定混凝土碳化程度的不足，基于热重法定量分析CaCO₃含量的试验原理，利用TA-Q500热重分析仪在原材料相同的条件下对不同水灰比及龄期条件下的混凝土碳化深度进行了检测，并阐述了该方法的具体操作步骤。结果表明：与酚酞试剂法相比，热重分析法可以定量分析碳化混凝土中的Ca(OH)2和CaCO₃含量，具有快速、方便的特点，且受环境和人为因素的影响较小，测试结果相对稳定准确。

Abstract: In view of the phenolphthalein method cannot accurately measure the concrete carbonation degree, based on the experimental principle of quantitative analysis of CaCO₃ content by thermogravimetric method, the carbonation depth of concrete under different water cement ratio and age conditions was tested by TA-Q500 thermogravimetry analyzer under the same raw materials, and the specific operation steps of the method were described. The results show that compared with the phenolphthalein reagent method, the thermogravimetry method can quantitatively analyze the content of Ca(OH)₂ and CaCO₃ in carbonated concrete, which has the characteristics of rapidity and convenience, and is less affected by the environment and human factors, and the test results are relatively stable and accurate.

关键词:

检测

the

and

method

caco3

混凝土

concrete

碳化

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热重分析法在混凝土碳化深度检测中的应用

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