This project has studied a contraction within the auto-g-nat of concrete made from Portland cement type 1 mixing rice husk ash. The replacement ratio in cement, 10, 0 per cent. 20 and 30 compared the weight of cement, concrete, the inflow is weak because it has found problems with crack from shrinkage are many. Rice husk ash with testing came to Los Angeles by a precise grind of 8000 RPM. Then use a contraction within the auto-g-nat of the concrete mixing rice husk ash using a Data Logger for a period of 28 days, with test of concrete mixing rice husk ash curing age 7, 14 and 28 days, respectively.
A study found that mixing rice husk ash for concrete shrinkage values are reduced by the quantity of concrete due to the increased quantity of cement decreased. On the influence of concrete But over time, long-term The principal Palazzo from rice husk ash yard por manner will make concrete mixing rice husk ash is getting increasing pressure however, getting pressure of concrete mix, rice husk ash to be less than normal concrete
.
การแปล กรุณารอสักครู่..
