TY - JOUR PB - WITPress SN - 17433541 EP - 1312 AV - none N1 - cited By 2; Conference of 9th International Conference on Urban Regeneration and Sustainability, SC 2014 ; Conference Date: 23 September 2014 Through 25 September 2014; Conference Code:114096 SP - 1301 TI - Utilization of microwave incinerated rice husk ash (MIRHA) in ductile self-compacting concrete Y1 - 2014/// JF - WIT Transactions on Ecology and the Environment A1 - Nuruddin, M.F. A1 - Azme, N.M. A1 - Chang, K.Y. UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84942125205&doi=10.2495%2fSC141092&partnerID=40&md5=fe84c654e29d6179ed60d2b266b260f4 VL - 191 N2 - Global annual rice production is estimated to be equivalent to 500 million tonnes. This gives around 100 million tonnes of husk available in the form of waste. While some husk is used as fuel in the rice mills to generate steam others are often left to disintegrate slowly in the field or burnt in the open for disposal. These practices clearly pose serious environmental pollution and health problems. Control burning using a microwave incinerator was used in this study to produce rice husk ash with a high silica content. The benefits of microwave incinerated rice husk ash (MIRHA) as a partial cement replacement material in ultra-high strength high performance concrete known as ductile self-compacting concrete (DSCC) has led to the research on the possibilities of combining both MIRHA and fly ash as an addition in DSCC replacing up to 20 of cement volume whilst improving its mechanical properties. The additions of these supplementary cementitious materials are expected to give positive effects on the hardened concrete properties. The test results showed that MIRHA and fly ash combination in DSCC improved compressive, tensile and flexural strength by average of 7 while maintaining its self-compacting abilities. © 2014 WIT Press. ID - scholars4168 KW - cement; compressive strength; concrete; flexure; fly ash; incineration; mechanical property; silica; tensile strength ER -