journal article·2015-03-24Open access

Material Design Methods for Lightweight Cement-Based Composites and Its Application

Sukmin Kwon, Tomoya Nishiwaki, Takatsune Kikuta, Hirozo Mihashi

Abstract

The purpose of this paper is to propose a material design method of lightweight cement-based composites that reduces the mass of building components and provides them with better insulation. To achieve this purpose, a number of special lightweight aggregates were tested. Furthermore, material design methods based on the packing density models and the void system model for lightweight porous mortar (LWPM) were applied. A series of experiments was carried out in order to investigate the mechanical properties and to examine the thermal conductivity of various types of lightweight mortar. The study identified that the adopted material design methods were effective in reducing the density of lightweight mortar and in obtaining sufficient insulation performance. Furthermore, compressive strength sufficient for required structural performance was also achieved in certain types of lightweight mortar. Finally, lightweight insulation block (LWIB) was developed by combining the packing density model and the void system model for achieving both of sufficient bearing capacity and high insulation performance.
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Research context

OpenAlex topics: Innovative concrete reinforcement materials · Innovations in Concrete and Construction Materials · Concrete and Cement Materials Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Architecture and Building Science, Tohoku University, Sendai, Japan.

Department of Architecture, Nippon Institute of Technology, Japan.

Tohoku University, Japan.

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Show source-provided references
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