MATERIAL FOR CONSTRUCTING TERMITE PENETRATION PREVENTING LAYER AND TERMITE PENETRATION PREVENTING LAYER OF WOODEN BUILDING LAID WITH THE SAME

摘要

PROBLEM TO BE SOLVED: To develop a material for constructing a termite penetration preventing layer, exerting no bad influence on the human body, friendly to an environment. SOLUTION: This abnormally shaped granular material for forming a termite penetration preventing layer to be laid on the ground inside and outside a foundation (4) of a wooden building (A) is characterized by a particle diameter of 1.7-2.0 mm.