การวัิเคราะห์์สมูบัติิ ที่างกายภิาพและเชิ้งกลข้อุงคอุนิกรีติบล็อุกกลวังผสมูเถ้าช้านิอุ้อุย

This study set out to determine how cement to sugarcane bagasse ash (SCBA) ash ratios affected the physical and mechanical properties of SCBA-concrete mixes. Cement to SCBA ratios of 0, 10, 20, 30, 40, and 50% by weight of binder were used in the trials. Examples of concrete were cast, and were subsequently cured in water for 3, 7, and 28 days while keeping a slump flow percentage of 110±5%. Data from test results were quantitatively and comparably analyzed. The results from X-ray fluorescence showed that half of the composition in SCBA was SiO2. Using a Scanning Electron Microscope it was found that the bagasse ash particles had an irregular shape with highly porous texture; it was classified as nearby Class C pozzolan, with an average specific gravity of 2.21. Bagasse ash sample lost 10.85 % of its weight during ignition. Mechanical tests of the compressive strengths of mortar blended with bagasse ash at 10, 20, 30, 40, and 50 % by weight were 247.59, 230.75, 193.30, 159.53, and 149.44 kg/cm², respectively. To make concrete masonry units, it was possible to combine mortar and coarse aggregate (chipped stone) in a 1:1.5 ratio with 10% bagasse ash substitution, which produced the best results. The concrete masonry unit had an average compressive strength of 33.74 kg/cm², making it a hollow non-load-bearing concrete masonry unit, in accordance with TIS 58-2560 (Thai Industrial Standards Institute). The results demonstrate that SCBA can assist lower production costs by serving in some cases as a cement substitute. To profit from advantages in both quality and cost, it is crucial to take into account the selection of binders from SCBA as biomass. [ABSTRACT FROM AUTHOR]