Improvement of the permeable concrete from cockle, rice husk ash and coir pith
Abstract
This research aims to investigate the feasibility of combining 3 by - products, namely cockle, rice husk ash (RHA), and coir pith in permeable concrete. The experiments of variation of water/cement ratio at 0.35, 0.4, 0.45, 0.5 and replacement of cockle by RHA, coir pith and cement at 0%, 3%, 5%, 10%, 15% (by weight) were conducted to evaluate the compressive strength and water absorption of permeable concrete. Applying into reality, the pavement tiles were produced based on the optimum mixture formula. In this study, the compressive strength, water absorption, and abrasion test were conducted following the national standards for permeable concrete. The results show that compressive strength, water absorption, and abrasion at the 28 - day age of the bricks which reach the Vietnam standards of interlocking concrete bricks are 280.88 daN/cm2, 6.67%, and 0.218 g/cm2, respectively.
Moraref