scholarly journals Mechanical Properties of Rice Husk Ash as a Mineral Addition in Concrete

2008 ◽  
Vol 5 (2) ◽  
pp. 21
Author(s):  
Kartini Kamaruddin ◽  
Hamidah Mohd Saman
Keyword(s):  
Mechanical Properties ◽  
Flexural Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Agricultural Waste ◽  
Partial Replacement ◽  
Replacement Level ◽  
Splitting Strength ◽  
Normal Strength ◽  
Tensile Splitting Strength

It is shown that some of the wastes have properties that would improve the quality of concrete produced. One such waste is agricultural waste rice husk, which constitutes about one-fifth of 600 million tones of rice produced annually in the world. The performance of RHA concrete was found to be varied among those of researchers and most of the studies encompassed for the utilisation of high grade concrete. This paper reported the investigation carried out on the mechanical properties of normal strength concrete of grade 30 N/mm2 with various partial replacement level of ordinary Portland cement (OPC) with Rice Husk Ash (RHA). Two(2) batches of same grade of concrete with and without use of superplasticiser (Sp) were adopted. The mechanical properties evaluated are in terms of compressive strength, flexural strength and tensile splitting strength of RHA concrete with and without superplasticiser (Sp). The results show that the optimum replacement level of RHA was 20 % and with the addition of Sp the replacement of RHA was taken as 40 %. However, the results of the study show that the performance in term of flexural strength and tensile splitting strength does not significantly improved with the replacement of cement with RHA.

Use of Water Glass from Rice Husk and Bagasse Ashes in the Preparation of Fly Ash Based Geopolymer

2019 ◽  
Vol 798 ◽  
pp. 364-369 ◽  
Author(s):  
Khemmakorn Gomonsirisuk ◽  
Parjaree Thavorniti
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Ball Mill ◽  
Water Glass ◽  
Rice Husk Ash ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Preparation Process

The aim of this work is to study the feasibility of preparation of fly ash based geopolymer using sodium water glass from agricultural waste as alternative activators. Rice husk ash and bagasse ash were used as raw materials for producing sodium water glass solution. The sodium water glass were produced by mixing rice husk ash and bagasse ash with NaOH in ball mill and boiling. The prepared sodium water glass were analyzed and used in geopolymer preparation process. The geopolymer paste were prepared by adding the obtained water glass and NaOH with fly ash. After cured at ambient temperature for 7 days, mechanical properties were investigated. Bonding and phases of the geopolymer were also characterized. The geopolymer from rice husk ash presented highest compressive strength about 23 MPa while the greatest for bagasse ash was about 16 MPa.

scholarly journals MECHANICAL PROPERTIES OF RICE HUSK ASH (RHA) BRICK AS PARTIAL REPLACEMENT OF CLAY

2020 ◽  
Vol 1529 ◽  
pp. 042034
Author(s):  
A.A.M. Damanhuri ◽  
A.M.H.S. Lubis ◽  
A. Hariri ◽  
S.G Herawan ◽  
M.H.I. Roslan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Partial Replacement

scholarly journals Study of Fly Ash, Rice Husk Ash and Marble Powder as Partial Replacement to Cement in Concrete

2020 ◽  
Vol 13 (3) ◽  
pp. 315-321
Author(s):  
Dhiraj Ahiwale ◽  
Rushikesh Khartode
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Flexural Strength ◽  
Rice Husk ◽  
Coarse Aggregate ◽  
Rice Husk Ash ◽  
Partial Replacement ◽  
Scale Production ◽  
Environmental Threat ◽  
Marble Powder

Now days, the waste rice husk from rice mill, marble powder from tile industry and fly ash from steam power plant are necessary to utilize as partial replacement of cement for concrete production. Large scale production of cement required consumption of raw materials and energy as well as emissions to air which posse’s environmental threat in various areas of country. Apart from the environmental threat, there still exists the problem of shortage in many areas. Therefore, substitute material for concrete needs to be considered. The paper aims to analyze the compressive strength of concrete cubes and flexural strength of concrete beams made from partially replaced cement, sand, and coarse aggregate. This research study adopted in laboratory on 48 total specimens of grade M25 concrete cubes of size 150x150x150mm and concrte beams of size 100x100x500mm were casted. Out of the 48 concrete specimens cast, 6 each were made out 10%, 20%, and 30 % replacement of fly ash, rice husk ash and marble powder to cement in concrete. It was found that the compressive strength and flexural strength of concrete made from the mixture of 20 % partially replaced cement, sand and coarse aggregate was similar than the concrete made from without replaced cement , sand and coarse aggregate.

Effect of Rice Husk Ash (RHA) on Physical Property and Mechanical Strength of Concrete

2015 ◽  
Vol 1115 ◽  
pp. 150-155
Author(s):  
Maisarah Ali ◽  
Mohd Syafiq Fadzil ◽  
Siti Asmahani Saad
Keyword(s):  
Rice Husk ◽  
Rice Husk Ash ◽  
Natural Fiber ◽  
Fiber Composite ◽  
Low Cost ◽  
Agricultural Waste ◽  
Physical Property ◽  
Peninsular Malaysia ◽  
Partial Replacement ◽  
Highly Active

Fast depleting natural resources, huge consumption of energy, and environmental hazards involved in the production of cement has inspired researchers to find partial replacement of cement using other or similar materials. Rice husk ash (RHA), an agricultural waste, is classified as “a highly active pozzolan” because it contains a very high amount of amorphous silica and a large surface area. Rice husk is natural fiber that has the advantages of low density, low cost and biodegradable. In Malaysia paddy is grown locally especially in northern states of Peninsular Malaysia. Rice husk is a by-product of paddy being process into rice. These make it a natural candidate for cement replacement agent especially in Paddy producing countries. In this paper, RHA was introduced as the micro filler in concrete mixtures. The replacement of RHA which is lighter as compared to the Ordinary Portland Cement results in decreasing density of cement fiber composite and less permeable concrete.

Comparative Study between SiC Reinforced Al 64430 Metal Matrix Composites and RHA Reinforced Al 64430 Metal Matrix Composites

2015 ◽  
Vol 1119 ◽  
pp. 234-238 ◽  
Author(s):  
Meena Laad ◽  
Vijaykumar S. Jatti ◽  
Satyendra Yadav
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Metal Matrix Composites ◽  
Rice Husk ◽  
Metal Matrix ◽  
Rice Husk Ash ◽  
Agricultural Waste ◽  
Industrial Applications ◽  
Matrix Composites ◽  
Weight Percentage

The excellent mechanical properties of Aluminium Metal Matrix Composites find applications in a variety of engineering applications in the automotive, aerospace and heavy machinery industries. This study aims at synthesis and characterization of Al 64430 reinforced with SiC particles and Rice Husk Ash (RHA). Rice husk ash is an agricultural waste which is produced in millions of tons worldwide. Aluminium was used as the base metal. With liquid metallurgy technique the metal matrix composites were prepared. The MMCs were synthesized with 3 % weight percentage RHA in Al metal matrix and the mechanical properties such as hardness, tensile strength and structural properties of MMCs were studied. The microstructure of the synthesized composites was examined by optical emission microscope and XRD. The Vicker’s microhardness test was performed on the composite specimens from base of the cast. The synthesized MMCs were found to have increased tensile strength, hardness, increased ultimate strength. The density of MMCs was observed to be decreased. This study indicates that RHA can be used as reinforcement material to synthesize light weight composites with increased hardness, tensile strength, Young’s modulus for various industrial applications.

scholarly journals Contrastive Analysis on Mechanical Properties of M Sand and River Sand Cement Mortar Bricks With Partial Restoration of Rice Husk Ash

2019 ◽  
Vol 9 (2S2) ◽  
pp. 1062-1065
Keyword(s):  
Mechanical Properties ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Cement Mortar ◽  
Agricultural Waste ◽  
Strength Properties ◽  
Contrastive Analysis ◽  
River Sand ◽  
Partial Restoration ◽  
Average Compressive Strength

Normally Rice Husk Ash (RHA) is treated as agricultural waste that do not afford any human feed products across the globe, these kind of agricultural waste can be converted into a convenient product and also M sand is used as a substitute for the river sand, the proportions of river sand from 100%, 75%, 50%, 25%, 0% were restored by M sand, along with that rice husk ash in various proportions from 0%, 5%, 10%, 15%, 20%, 25%, 30% to determine the optimum percentage of rice husk ash without affecting strength properties of bricks. The optimum restoration of 35% of RHA delivered the average compressive strength of 5.34 MPa which is higher than that of common buildingbricks.

scholarly journals Partial Replacement of Cement Concreete with Biological Green Waste

2018 ◽  
Vol 7 (3.35) ◽  
pp. 68
Author(s):  
Tolmatti Vamshi Krishna ◽  
M. Ashwin Kumar ◽  
Kunchala Anjaneyulu
Keyword(s):  
Mechanical Properties ◽  
Sugarcane Bagasse ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Research Work ◽  
Morphological Characteristics ◽  
Mineral Admixture ◽  
Partial Replacement ◽  
Acid Attack ◽  
Concrete Production

Bagasse ash (BA), the residue obtained after the burning of sugarcane bagasse as a fuel, has pozzolanic properties with potential use as a supplementary binding material (SCM). Use of Bagasse ash (BA) as a mineral admixture needs to be established, especially in India, where sugarcane cultivation is widespread, to reduce land required for its disposal and cement consumption in construction industry. Hence, to encourage commercial use ofBA with minimum processing, an evaluation of the physical, chemical and  morphological characteristics of a locally available BA and its effect, as SCM on properties of structural concrete was taken up.This research work describes the feasibility of using the Fly Ash (FA) Rice Husk Ash (RHA) and Sugarcane Bagasse Ash(SCBA) waste in concrete production as a partial replacement of cement. This present work deals with the effect on strength and mechanical properties of concrete using Triple blending of cement concrete using FA, RHA and SCBA instead of cement. The cement has been replaced by rice husk ash, accordingly in the range with 0%, 10%, 20% and 30% by weight. Concrete mixture of M20 and M25 and M30, were produced, tested and compared in terms of compressive strengths with the Conventional concrete. These tests were carried out to evaluate the mechanical properties for the test results of7, 14, 28, 56 and 90 days for Compressive strengths and Tensile & Flexural Strengths at 28 days. The durability aspect of the samples for Acid attack, Alkaline attack and Sulphate attack was also tested. The result indicates that the FA, RHA and SCBA improve the Compressive Strength and durability of concrete.  

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