seminar on rha concrete

10%RHA/OPC concrete (78.79MPa) was higher than the strength of the control specimen (77.03MPa) at 150days; which proves that - pozzolanas can produce concrete with close characteristics as normal concrete beyond age 28-days, thereby making it a suitable green construction material.

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RHA not only improves the properties and durability of concrete but also reduces the amount of cement consumed in construction processes. Earlier studies pertaining to merged RHA to concrete are not recent. Use of RHA in concrete was untested in 1924 [4] up to 1973 investigation has been done on the pozzolanic reactivity of RHA …

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that RHA concrete gave an excellent improvement in strength for 10% replacement (30.8% increment compared to the control mix), and up to 20% of cement could be valuable replaced with RHA without adversely affecting the strength. Kartini et al, [6], rice husk ash pozzolanic material for

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Reactive silica and fineness effect was assessed in this study by examining two different RHAs, both in blended cement and concrete level. It was found out that RHA is a material extremely "sensitive" to fineness changes; the higher being the fineness the more positive is the effect of RHA …

02-11-2015· 1. seminar on RICE HUSK ASH PRESENTED BY- GUIDE MOHAMAD MUJTABA HARSHA.D.SAPKAL. 2. A valuable green resource with great potential. 3. What is Rice husk ash ( RHA) Obtained from burning protecting outer cover of rice …

RHA in concrete. Keywords: Concrete, Rice Husk Ash, Compacting factor, Compressive strength 1.0 INTRODUCTION concrete compared to OPC concrete. The need to reduce the high cost of Ordinary Portland Cement in order to provide accommodation for the populace has intensified research into the use of some locally available

2 A STUDY ON USE OF RICE HUSK ASH IN CONCRETE A PROJECT REPORT SUBMITTED IN THE PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE AWARD OF THE DEGREE OF BACHELOR OF ENGINEERING IN CIVIL ENGINEERING SUBMITTED BY M.B.G Sameer Kumar D. Santosh Pushparaj P.R.D Prasad K. Bipin Chandra Phani G. Ramu Under the Esteemed Guidance of

28-09-2018· The effect of rice husk ash (RHA) on concrete properties and durability was studied. To establish the suitable proportion of RHA for the partial replacement of cement, concrete mixtures with …

01-07-2014· During preparation of concrete mixtures, RHA (ground to P-level) replaced 10 and 20% b.w. of cement, both cement (annotation: CEM) and aggregates (AGGR). This addition was selected because it is not too high (that could change drastically the hydration rate of the binder) nor too low (so as to enable to monitor its effect).