The Application and Developmental Trend of Exterior Wall External Insulation

2012 ◽  
Vol 174-177 ◽  
pp. 1367-1371 ◽  
Author(s):  
Shu Rong Guo

Materials for exterior wall external insulation have various types and the uneven development in different areas. Based on the studies of related works, exterior wall external insulation can be generalized as four series according to the construction technologies, which includes the series of the plug-in insulation materials, the slurry and spray, the concrete sandwich heat insulation, and the energy-saving inorganic insulation materials. Associated with China’s situation, the application features and developmental prospect of main exterior wall external insulation materials in every series have been emphasized, and furthermore, several suggestions have been given to the development of exterior wall external insulation materials in China.

2020 ◽  
Vol 3 (2) ◽  
pp. 32
Author(s):  
Wenxin Luo

<p>For the development and progress direction of contemporary construction industry, greening has always been one of the most important topics, which is basically consistent with China’s guidelines on environmental protection and resource conservation, with emphasis on whether it can effectively improve the ecological environment quality in urban areas, control various hazards caused by pollution, and build a healthy urban environment for people. Nowadays, the building materials market has also developed in an all-round way, and the types of materials for exterior wall insulation are also increasing. Relatively, the practical application difficulty of various technologies in the construction industry also shows an increasing trend. In order to better highlight the important role of insulation materials for green buildings, this paper will explore the application of exterior wall insulation materials with strong energy saving in green buildings.</p>


2019 ◽  
Vol 138 (4) ◽  
pp. 2505-2513 ◽  
Author(s):  
Sergiu-Valeriu Georgescu ◽  
Camelia Coşereanu ◽  
Adriana Fotin ◽  
Luminiţa-Maria Brenci ◽  
Liviu Costiuc

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Junkai Xie ◽  
Bo Gao ◽  
Huamin Cheng

With the rapid development of global civil engineering construction, the intelligent structural system of civil engineering has evolved into one of the current global frontier disciplines. The research on the intelligent structural system of civil engineering and the current development situation are analyzed, and the main problems are combined. Giving reasonable suggestions is of great significance to the country's vigorous development of civil engineering intelligent structure system. This paper designs a new type of three-dimensional fiber grating sensor, including the design of the matrix model and the design of fiber grating strain gauges. This new sensor can effectively measure three-dimensional space, greatly expanding the application range of fiber grating sensors. In this paper, the design lighting area of each light pipe is taken as a unit. Each unit is set with 4 measuring points at the center and the edge. Each measuring point reads 3 illuminance value parameters and records the average value. Based on the results and comprehensive consideration of the short board situation, the research conclusions and recommendations are put forward. The foundation wall with aerated concrete blocks as the wall material can meet the requirements of 50% energy saving for exterior wall buildings with external decoration and internal insulation mortar. Compared with the benchmark wall of 50% energy saving of external wall buildings, the heat transfer coefficient is reduced by 50.1%, and the actual energy-saving effect of the wall can reach 75%. Meet the requirements of 65% for the energy-saving effect of exterior wall buildings. This paper considers economic parameters, such as the investment cost of building insulation materials, energy-saving income, and investment recovery period, and establishes a calculation model for analyzing the economics of insulation materials. Based on the heat transfer model of the composite wall and the fuel energy combustion equation, greenhouse gas is an established calculation model for CO2 and SO2 emissions. Studies have shown that when considering the room temperature insulation performance of insulation materials, the time required for the side of the concrete slab with glass fiber felt and aerogel insulation materials is about 2022 and 3363 s, respectively, indicating the fire resistance of aerogel insulation materials significantly better than fiberglass.


2012 ◽  
Vol 164 ◽  
pp. 93-96 ◽  
Author(s):  
Chang Guo ◽  
Jian Yao

This paper analyzed the effect of same insulation materials on energy-saving potential of three different buildings by using the energy simulation program DOE-2. The results show that the heating energy saving rate of the building decreases when the building shape coefficient increases, while cooling energy saving rate of the building rises and the total energy saving rate of the buildings will reduce.


Coatings ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 829
Author(s):  
Xian Rong ◽  
Lichao Jiao ◽  
Xiangfei Kong ◽  
Guangpu Yuan

In this article, we mixed hollow glass beads with nano-TiO2 and iron oxide red in a certain proportion to prepare a low-brightness, high-reflective, safe, and durable cooling coating throughout the experiments. The coating is suitable for energy-saving in tropical areas. To discuss the energy saving effects of the coating on an exterior envelope in tropical areas, a comparative analysis for two scenario models of a two-story residential building in Kuala Lumpur, Malaysia was conducted. The results indicated that the heat reflective insulation coating could reduce the exterior envelope surface temperature effectively, and the maximum temperature change was about 6–8 °C. Through calculations, it was found that the annual energy saving rate was 12.9%, which showed that the energy saving effect of the heat insulation coating was obvious in Kuala Lumpur. The brightness of the coating was less than 50%, and its comfort and safety met the requirements.


Author(s):  
Martins Andzs ◽  
Voldemars Skrupskis

Obtaining of a new ecological heat insulation material from always renewable raw material in nature, wood and hemp, derived from wood and hemp fibre remains left from the production process. The study was carried out to find hemp wood parts (shives), fiber, and material first possible compositions together with wood fibres, to produce heat insulation materials. The use of the heat insulation material would be meant for dwelling and recreation houses. In the present research the main characteristics of these materials are determined: moisture content, density, water absorption, as well as the coefficient of heat transmission.


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