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不同裂缝尺度下无机轻骨料砂浆外墙外保温系统温度场分析
Analysis on Temperature Field of External Thermal Insulation Composite Systems of Inorganic Lightweight Aggregate Mortar with Different Crack Scales
2021年第4期
裂缝;外墙外保温系统;无机轻骨料砂浆;温度场;热雨循环;热物理性能
Crack; External thermal insulation composite system; Inorganic lightweight aggregate mortar; Temperature field; Heat-rain cycle; Thermal physical property
2021年第4期
10.19761/j.1000-4637.2021.04.069.05
浙江省基础公益研究计划项目(LGF18E080010);浙江省重点研发计划项目(2020C01147);教育部高等教育司产学合作协同育人项目(201802294017)。
田静静1,袁克龙1,熊厚仁2,郑 豪2
1.嘉兴学院 南湖学院,浙江 嘉兴 314001;2.嘉兴学院 建筑节能技术实验室,浙江 嘉兴 314001

田静静1,袁克龙1,熊厚仁2,郑 豪2

田静静,袁克龙,熊厚仁,等.不同裂缝尺度下无机轻骨料砂浆外墙外保温系统温度场分析[J].混凝土与水泥制品,2021(4):69-73.

TIAN J J,YUAN K L,XIONG H R,et al.Analysis on Temperature Field of External Thermal Insulation Composite Systems of Inorganic Lightweight Aggregate Mortar with Different Crack Scales[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(4):69-73.

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摘   要:研究了不同裂缝尺度下无机轻骨料砂浆外墙外保温系统的温度场变化情况,对含预制裂缝宽度为0.05 mm、0.10 mm、0.20 mm、0.30 mm、0.40 mm和0.50 mm的试件进行了160次热雨循环试验,测量了不同裂缝尺度下试件的温度值,分析了各阶段的温度场变化规律。结果表明:与无裂缝情况下相比,试件预制裂缝对基墙温度的变化有一定影响;系统的热物理性能随热雨循环次数的增加而逐渐劣化,裂缝宽度对保温层温度的变化影响很小,仅会对基墙的温度造成一定影响;当裂缝较宽时,基墙将在升温阶段达到较高的温度。 Abstract: The temperature change in the external thermal insulation composite systems of inorganic lightweight aggregate mortar (ETICS-ILAM) containing different crack scales was studied. 160 times of hot rain cycles were carried out on ETICS-ILAM specimens with prefabricated crack widths of 0.05 mm, 0.10 mm, 0.20 mm, 0.30 mm, 0.40 mm and 0.50 mm. The temperature values of the specimens with different crack sizes were measured, and the variation law of the temperature field in each stage was analyzed. The results show that the prefabricated cracks in the specimens have a certain influence on the temperature change in the base-wall. The thermal physical properties of the system gradually deteriorate with the increase of the number of heat-rain cycles. The crack width has little influence on the temperature change in the insulation layer, but has noticeable influence on the temperature in the base-wall. When the crack has a relatively bigger width, the temperature in the base-wall can reach a relatively higher value during the temperature increasing stage. 
英文名 : Analysis on Temperature Field of External Thermal Insulation Composite Systems of Inorganic Lightweight Aggregate Mortar with Different Crack Scales
刊期 : 2021年第4期
关键词 : 裂缝;外墙外保温系统;无机轻骨料砂浆;温度场;热雨循环;热物理性能
Key words : Crack; External thermal insulation composite system; Inorganic lightweight aggregate mortar; Temperature field; Heat-rain cycle; Thermal physical property
刊期 : 2021年第4期
DOI : 10.19761/j.1000-4637.2021.04.069.05
文章编号 :
基金项目 : 浙江省基础公益研究计划项目(LGF18E080010);浙江省重点研发计划项目(2020C01147);教育部高等教育司产学合作协同育人项目(201802294017)。
作者 : 田静静1,袁克龙1,熊厚仁2,郑 豪2
单位 : 1.嘉兴学院 南湖学院,浙江 嘉兴 314001;2.嘉兴学院 建筑节能技术实验室,浙江 嘉兴 314001

田静静1,袁克龙1,熊厚仁2,郑 豪2

田静静,袁克龙,熊厚仁,等.不同裂缝尺度下无机轻骨料砂浆外墙外保温系统温度场分析[J].混凝土与水泥制品,2021(4):69-73.

TIAN J J,YUAN K L,XIONG H R,et al.Analysis on Temperature Field of External Thermal Insulation Composite Systems of Inorganic Lightweight Aggregate Mortar with Different Crack Scales[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(4):69-73.

摘要
参数
结论
参考文献
引用本文

摘   要:研究了不同裂缝尺度下无机轻骨料砂浆外墙外保温系统的温度场变化情况,对含预制裂缝宽度为0.05 mm、0.10 mm、0.20 mm、0.30 mm、0.40 mm和0.50 mm的试件进行了160次热雨循环试验,测量了不同裂缝尺度下试件的温度值,分析了各阶段的温度场变化规律。结果表明:与无裂缝情况下相比,试件预制裂缝对基墙温度的变化有一定影响;系统的热物理性能随热雨循环次数的增加而逐渐劣化,裂缝宽度对保温层温度的变化影响很小,仅会对基墙的温度造成一定影响;当裂缝较宽时,基墙将在升温阶段达到较高的温度。

Abstract: The temperature change in the external thermal insulation composite systems of inorganic lightweight aggregate mortar (ETICS-ILAM) containing different crack scales was studied. 160 times of hot rain cycles were carried out on ETICS-ILAM specimens with prefabricated crack widths of 0.05 mm, 0.10 mm, 0.20 mm, 0.30 mm, 0.40 mm and 0.50 mm. The temperature values of the specimens with different crack sizes were measured, and the variation law of the temperature field in each stage was analyzed. The results show that the prefabricated cracks in the specimens have a certain influence on the temperature change in the base-wall. The thermal physical properties of the system gradually deteriorate with the increase of the number of heat-rain cycles. The crack width has little influence on the temperature change in the insulation layer, but has noticeable influence on the temperature in the base-wall. When the crack has a relatively bigger width, the temperature in the base-wall can reach a relatively higher value during the temperature increasing stage. 

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(1)随着热雨循环次数的增加,外墙外保温系统的热物理性能逐渐劣化,隔热效果逐渐降低。
(2)与无裂缝情况下相比,试件预制裂缝对基墙温度的变化有一定影响,预制裂缝较宽时,将使基墙在升温阶段达到较高的温度。
(3)不同宽度预制裂缝对保温层温度无明显影响,保温层表面温度受预制裂缝的影响很小。

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田静静,袁克龙,熊厚仁,.不同裂缝尺度下无机轻骨料砂浆外墙外保温系统温度场分析[J].混凝土与水泥制品,2021(4):69-73.

TIAN J J,YUAN K L,XIONG H R,et al.Analysis on Temperature Field of External Thermal Insulation Composite Systems of Inorganic Lightweight Aggregate Mortar with Different Crack Scales[J].CHINA CONCRETE AND CEMENT PRODUCTS,2021(4):69-73.

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