The Heat Transfer Coefficient of Recycled Concrete Bricks Combination with EPS Insulation Board Wall

Jianhua Li,Wanlin Cao

doi:10.1155/2015/695962

Abstract

Four tectonic forms samples were conducted to test their heat transfer coefficients. By analyzing and comparing the test values and theoretical values of the heat transfer coefficient, a corrected-value calculation method for determining the heat transfer coefficient was proposed; the proposed method was proved to be reasonably correct. The results indicated that the recycled concrete brick wall heat transfer coefficient is higher than that of the clay brick wall, the heat transfer coefficient of recycled concrete brick wall could be effectively reduced when combined with the EPS insulation board, and the sandwich insulation type was better than that of external thermal insulation type.

Highlights

As urbanization has gradually been expanding, the rapid speed of building construction and remarkable achievements in energy conservation are expanding [1]
The thermal preservation performance of the exterior wall is the key to achieving energy efficiency in buildings [5, 6]
Exterior wall differs among building materials, structural types and varies with environmental conditions

Summary

Introduction

As urbanization has gradually been expanding, the rapid speed of building construction and remarkable achievements in energy conservation are expanding [1]. The thermal preservation performance of the exterior wall is the key to achieving energy efficiency in buildings [5, 6]. Exterior wall differs among building materials, structural types and varies with environmental conditions. A growing need of researching green wall building materials and its thermal preservation and thermal insulation performance was induced. The most common thermal insulation type was adding heat preservation materials on the outside of exterior wall, with the biggest limitation of shorter durability [8, 9]. The diverse external wall materials with different forms of EPS heat preservation structural types, whether the variations of their thermal insulation properties are distinctly different, have not traditionally been a focus in the context of the wall heat preservation and energy conservation

Objectives

Results

Conclusion