IRJET- STUDY ON STRENGTH CHARACTERISTIC OF CONCRETE WITH PARTIAL REPLACEMENT OF CEMENT WITH RICE HUSK ASH (original) (raw)
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Concrete is no longer made of aggregates, Portland cement and water only it is not always incorporate so it requires at least one of the additional ingredients such as admixtures, supplementary Cementitious material or fibers to increase the strength and durability. Rice husk ash is one of the pozzolanic materials that can be blended with Portland cement for the production of durable concrete. Supplementary Cementitious materials prove to be effective to meet most of the requirements of durable concrete. Rice husk ash is found to be greater to other supplementary materials like silica fume and fly ash. In the current study an attempt has been made to investigate the strength parameters of M20 concrete (compressive and split tensile). For control concrete, IS method of mix design is adopted. Partial replacement of cement has been made with different percentage of RHA namely, 5%, 10% and 15%. Large range of curing periods starting from 7, 14 and 28 days are considered in the present study.
Variation in % of Rice Husk Ash with Cement for Improvement in Properties of Concrete
The Rice Husk Ash can be used as an alternative material instead of ordinary Portland cement. This technology could reduce the CO2 emission to the atmosphere caused by the cement industries. In the present investigation, a feasibility study is made to use Rice Husk Ash as an admixture to replace Portland cement in Concrete, and an attempt has been made to investigate the strength parameters of concrete (Compressive and Flexural). For control concrete, IS method of mix design is adopted and considering this a basis, mix design for replacement method has been made. Five different replacement levels namely 5%, 7.5%, 10%, 12.5% and 15% are chosen for the study concern to replacement method with range of curing periods starting from 7days and 28days are considered in the present study. Therefore, this paper aims at experimental study of variation of percentage of rice husk ash with cement for improvement in properties of concrete.
International Journal of Trendy Research in Engineering and Technology(IJTRET), 2021
The concrete industries introduce various related techniques to integrate and utilize a waste material, which are easily acceptable, easily available, and economically within the buying powers of an ordinary people. Presence of such materials in cement concrete not only reduces the carbon dioxide emission, but also impact significant improvement in workability and durability. For control of concrete strength, IS method of mix proportion is used and considering this as basis, mix design for replacement method has been made. In the present study five different replacement levels namely 10%, 20%, and 30% of RHA are chosen. Large range of curing periods starting from 7days, 14days, and 28days are considered in the present study.
Strength Performance of Concrete Produced with Rice Husk Ash as Partial Replacement of Cement
African Journal of Environmental Sciences & Renewable Energy, 2022
Concrete is the most common construction material with its major constituent being cement. The production of this Cement results in a lot of environmental issues which include the constant emission of CO2 gas. Reduction of this gas, preservation of natural resources needed in the production of the constituent of cement and subsequent sustainability of concrete structures have fueled the search for alternative cementing material to produce environment-friendly construction materials. Recently, supplementary cementitious materials like the agricultural by-products are used to replace a portion of the cement in concrete mixtures. The use of such CSM in concrete not only prevents these products from being land-filled which causes pollution but also enhances the properties of concrete in the fresh and hardened states. These supplementary cementitious materials with pozzolanic action react with hydration products in cement to form calcium silicate hydrate (CSH) thus enhancing and improving concrete quality and consequently reducing the cost of concrete production. One of such material is Rice Husk Ash (RHA). The study investigated the chemical composition of RHA as well as the specific gravity, workability, compressive strength, split tensile strength and flexural strength properties, with varying percentage of blended cement concrete and 100% cement concrete of mix ratio 1:2:4 and water-cement ratio of 0.5 were examined and compared. Slump test and compacting factor test was carried out to check the effect of RHA on the workability of fresh concrete. RHA partially replace cement in the order of 0%, 5%, 10%, 15%, 20%, 25% and 30% were cast. The concrete specimens were tested at the ages of 7, 14, 21 and 28 days. The optimal cement replacement was found to be at 10% RHA. This combination gave a compressive strength of 26.8 N/mm2. This is close to the control concrete with compressive strength of 26.9 N/mm2 at 28days hydration period. Therefore, rice husk ash can be used as a replacement for cement in concrete.
STUDY ON EFFECT OF PARTIAL REPLACEMENT OF CEMENT BY RICE HUSK ASH ON PROPERTIES OF CONCRETE
IRJET, 2022
This study aims to optimize the use of rise husk ash in increasing the strength of concrete. Rice husk ash is one of the major byproduct of rice mill industry. Rice husk ash has huge proportion of silica in it and behaves as a good cementious material due to the presence of silica in it. The fineness of rice husk ash particles allows it to get filled in between the voids in the concrete and thus increases the density of the concrete. The benefit of replacing cement with rice husk ash is that it is cheaply available, have high surface area, high silica content and high fineness modulus. In this study some proportion of cement is replaced with rice husk ash for M30 grade of concrete and the properties of new mix with 5 percent, 10 percent, 15 percent and 20 percent is compared with 0 percent replacement of RHA. The comparison of the results show that the compressive strength of concrete increased maximum upto 7.234 percent at 7 days and 8.978 percent at 28 days and split tensile strength increased maximum upto 8.367 percent at 7 days and 11.932 percent at 28 days at 15 percent replacement of cement with RHA. Also the flexure strength increased maximum upto 1.96 percent at 7 days and 1.06 percent at 28 days with 10 percent replacement of cement by RHA
Effect of Rice Husk Ash and Water-Cement Ratio on Strength of Concrete
In present status quo, number of researcher are working on waste materials as potential supplement for any of the constituent of concrete to cope with sustainable development. As, the ingredients which constitute the body and give strength to concrete are natural available limited material and has to deplete one day. Thus, there is desperately need of alternate that may replace the limited natural resources. In this regard, this study focuses the rice husk ash (waste stuff) as partial replacement of cement and its possible impact on strength of concrete. In addition, this research work also this research work is conducted to investigate the effect of water-cement ratio on the strength of concrete at 10% partially replacement of Rice husk ash (RHA) by the weight of cement. RHA is a mineral admixture obtained by burning husk at certain temperature. Since as per pervious researches, the physical and chemical properties of RHA are very reactive Pozzolans and possess binding properties so can be used as cement supplement. Therefore, for laboratory experimental work, total 144 cubical and 72 cylindrical. In this research, number of concrete specimens were cast and tested at 1:2:4 mix ratio with various w/c ratios i.e. 0.45, 0.50 and 0.60. Further, at each specified water-cement ratio, two mechanical properties (compressive and splitting tensile strength) were determined in Universal Testing Machine (UTM). These physical properties of concrete were investigated at 7, 14, 28 and 56 days curing period. The experimental results show that the compressive strength gets increased up to 14.51% and tensile splitting test strength increased up to 10.71% at the w/c ratio of 0.45. The workability of plain fresh concrete at all w/c ratios is slightly greater than the workability of concrete blended with 10% RHA. Thus, RHA improves the properties of concrete when used in specific amount. As a result, it can reduce the overall cost of construction and it will reduce the adverse environmental effect.
Study on concrete with rice husk ash
Innovative Infrastructure Solutions, 2018
Rice husk ash (RHA) possesses high pozzolanic activities and very suitable as partial replacement of cement in concrete. This paper presents a comparative study on use of RHA as partial replacement of cement in concrete specimens. Review of the researches on physical, mechanical and structural properties of concrete containing RHA as partial replacement of ordinary Portland cement was included in this paper. Simultaneously, concrete specimens were tested with different percentages of RHA as replacement of cement content and with different w/c ratio. Compressive strength, flexural strength, tensile strength and slump test were carried out to evaluate the appropriateness of using RHA in concrete. The replacement of cement by RHA in structural concrete represents a good alternative in as economical as strength consideration of concrete, even without any kind of processing and found environmental benefits related to the disposal of waste. Review of researches shows that RHA-used concrete can resist chloride penetration more than normal ordinary Portland cement concrete.
IRJET, 2021
Rice husk ash (RHA) has high reactivity and pozzolanic properties and it is made by burning rice husk (RH). The method of burning and the temperature affect the chemical composition of rice husk ash. The amount of silica in the ash increases as the burning temperature increases. It can be used in concrete as a partial replacement for cement. This paper presents a study on the mechanical properties of concrete by partially replacing cement with rice husk ash while maintaining the quality and strength of concrete. Cement was replaced with rice husk ash by weight at 0%, 5%, 10%, 15%, 20% and 25%. The slump was tested for fresh concrete. The Compressive, split tensile, and flexural strengths were tested on hardened concrete after curing in water for 7, 14, and 28 days.
Study on concrete with partial replacement of cement by rice husk ash
IOP Conference Series: Materials Science and Engineering, 2016
Increase in the demand of conventional construction materials and the need for providing a sustainable growth in the construction field has prompted the designers and developers to opt for 'alternative materials' feasible for use in construction. For this objective, the use of industrial waste products and agricultural byproducts are very constructive. These industrial wastes and agricultural by products such as Fly Ash, Rice Husk Ash, Silica Fume, and Slag can be replaced instead of cement because of their pozzolanic behavior, which otherwise requires large tract of lands for dumping. In the present investigation, Rice Husk Ash has been used as an admixture to cement in concrete and its properties has been studied. An attempt was also done to examine the strength and workability parameters of concrete. For normal concrete, mix design is done based on Indian Standard (IS) method and taking this as reference, mix design has been made for replacement of Rice Husk Ash. Four different replacement levels namely 5%, 10%, 15% and 20% are selected and studied with respect to the replacement method. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Materials Science Forum, 2014
The use of pozzolanic material from waste product as partial cement replacement in concrete contribute to reduce the environmental, economic problem through their waste and as well enhance the strength and properties of concrete. Rice husk ash (RHA) is one of the industrial waste that suitably used as a cement replacement due to its pozzolanic properties which can enhance the properties of concrete. In this study, the workability, compressive strength and water absorption of the concrete containg RHA is investigating. The chemical content of RHA also investigated by using X-ray Fluorescence Test (XRF). The different RHA percentage of 5%, 15% and 25% were used in this study with burning temperature 650°C. The concrete cube of size 100 mm x 100 mm x 100 mm were prepared and cured for 7, 14 and 28 days. Based on result, it was concluded that the optimum RHA replacement for cement in this report was 5 %, which provided the highest compressive strength at 28 days.