การศึกษาคุณสมบัติของอิฐทดแทนเพื่อใช้อนุรักษ์อาคารก่ออิฐโบราณ ชุมชนบ้านท่าแร่ จังหวัดสกลนคร

Abstract

 Ancient brick buildings in Ban Tha Rae community characteristics of load-bearing masonry wall structures, currently, 4 ancient brick buildings many cracks were found especially in the masonry walls and arched masonry arches. The purpose of this research is to study the properties of substitute bricks, using local clay to produce bricks by burning rice husks. The study, it was found that 1) The characteristics of the soil used for brick production were sandy clay. 2) Compressive Strength Test of Substitute Bricks Sample group A, clay mixed with rice husk ash at the ratio of 4% had the highest compressive strength. In sample B, clay mixed with sand at 20% and rice husk ash at 4% had the highest compressive strength. When comparing sample A, it had higher compressive strength than sample B. But the test results of the two samples of bricks is higher than the standard (TIS. 77-2517) and 3) the water absorption test of the replacement bricks in samples A and B found that sample B had less water absorption. The water absorption test results for both samples were not higher than the standard (TIS 77-2517). This study of replacement bricks is one of the methods for preserving old buildings to maintain their original condition and maintain their architectural identity. The relevant agencies can promote them to become a learning center and cultural attractions for those who are interested in the future.