| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a composite lightweight block having enough strength to be used as a building member such as a wall member, etc., and excellent material properties such as a lightweight property, a heat insulation property, etc. SOLUTION: The composite lightweight block 1 is constituted by forming a cement mortar layer 2 around a rigid foamed resin block 3 in such a manner as to cover the block 3 or infilling a massive or granular material made of a rigid foamed resin or a fibrous material in the hollow part of a hollow block composed of cement mortar. The cement mortar having a compressive strength of 100 MPa or more is preferably composed of cement, a pozzolanic impalpable powder, aggregate having a grain size of 2 mm or less, a fiber having a longer length than the maximum grain size of the aggregate, a fine acicular material and/or a fine thin piece-like material, a high-performance water reducing agent, and water.</p> |
