Authors: Jitender ., Shivani Thakur, Sonia .
Certificate: View Certificate
In this study the influence of partial relief of Ordinary Portland cement by Metakaolin and Rice Husk Ash were delved. In the last decade the use of supplementary bonding accoutrements has come an integral part of high strength and high performance concrete blend design. Rice hull ash is a by- product material attained from the controlled combustion of rice hull which consists of non-crystalline silicon dioxide with high specific face area and high pozzolanic reactivity. Metakaolin helps to reduce the quantum of calcium hydroxide, therefore performing in stronger and durable concrete. OPC was replaced with these mineral admixtures at 2, 4, 6 and 8% by weight. 0% relief served as the control. Compressive Strength test was carried out on hardened 150 mm concrete cells after at 7 and 28 days curing in water. Compression strength test confirms its felicity as a partial relief mineral amalgamation.
Concrete is the world’s most extensively used construction material due to its versatility, duration, sustain-capability, and frugality. Concrete is an admixture of aggregates (beach clay or crushed gravestone) held together by a binder of cementitious paste, generally made up of Portland cement and water. It may also contain supplementary cementing accoutrements (SCMs), similar as cover ash or sediment cement, and chemical cocktails. The cost of constructional accoutrements increases day by day due to huge demand of it. So the concrete masterminds look towards the alternative material that not only improves the strength of concrete but replaces the cement content which in turn reduces the cost of our construction work. The main advantage of incorporating the supplementary bonding material not only improves the strength but also help in precluding the pollution. It also improves the duration. Duration is linked to the physical, chemical and mineralogical characteristics of material and permeability.
RICE HUSK ASH: The rice husk, also called rice hull, is the coating on a seed or grain of rice. It's formed from hard accoutrements including silica and lignin, to secure the seed during the growing season. Each kg of crushed white rice results in roughly 0.28 kg of rice hull as a byproduct of rice product during milling. Common products from rice hull are solid energy (i.e. loose form, briquettes, and bullets), carbonized rice hull produced after burning, and the remaining rice hull ash after combustion. Rice hull ash is an active Pozzolana and has several usages in the cement and concrete assiduity. The use of RHA is less costly because it reduces the cement demand, thereby decreases the overall product cost of concrete. Reduction in cement demand leads to lower environmental pollution by cement manufactories and provides profitable and environmental benefits, along with supplying a utilitarian way of disposing this farming waste product which has little indispensable use.
Metakaolin is a pozzolan, likely the most effective pozzolanic material for use in concrete. It's a product that's manufactured for use rather than a by- product and is formed when demitasse complexion, the mineral humus, is heated to a temperature between 600 and 800ºC. Its quality is controlled during manufacture, per forming in a much less variable material than artificial pozzolanas that are by products. When used to replace ce ment at levels of 5 to 10 by weight, the concrete produced is generally more cohesive and less likely to bleed. As a result pumping and finishing processes bear lower trouble. The compressive strength of hardened concrete is also increased at this degree of replacement.
II. LITERATURE REVIEW
III. AIM OF WORK
The use of Rice hull ash and Metakaolin (MK) as partial relief of cement in mortar and concrete has been considerably researched in recent times. The literature reviewed easily demonstrates that MK is an effective pozzolan. Metakaolin finds operation in multiple aspects of concrete: ¬¬- 1) High performance, high strength and feather light concrete 2) Precast concrete for architectural, civil, artificial, and structural purposes 3) Fiber cement and ferrocement products 4) Glass fiber corroborated concrete 5) Mortars, stuccos, form material, pool plasters 6) Increased compressive and flexural strengths 7) Reduced permeability 8) Increased resistance to chemical attack 9) Increased duration 10) Reduced result of alkali- silica reactivity( ASR) The following characteristics of the concrete are altered with the addition of rice hull a) Rice hull ash provides good compressive strength to the concrete. b) It\'s a by- product hence, it helps in cutting down the environmental pollution. c) The high silica content makes it a good supplementary cementitious material or pozzolanic amalgamation. d) The viscosity of concrete containing rice hull ash is analogous to the normal weight concrete hence, it can also be used for the general purpose operation too. e) The impervious microstructure of rice hull ash concrete provides better resistance to the sulphate attack, car bonation etc. f) Rice hull concrete has good loss property and increases the duration of concrete.
 P. Dinakar , PradoshK. Sahoo, and. Sriram,( 2013) “ Effect of Metakaolin Content on the characteristics of High Strength Concrete ” International Journal of Concrete Structures and material, Vol. 7,No. 3,pp. 215 – 22  Lenka S and Panda, Kishore, (2017) “Effect of metakaolin on the characteristics of conventional and tone- compacting concrete”, Advances in concrete construction, Vol. 5, pp. 31- 48.  A. Elahi, P.A.M.Basheer, S.V. Nanukuttan, Q.U.Z.Khan. (2010) “Mechanical and duration characteristics of high performance concrete containing Supplementary cementitious material.” Construction of Building material, Vol. 24, Pg. 292- 299  Bai, Jiping; Gailius, Albinas,\" consistence of cover ash and metakaolin concrete\" Journal of Civil Engineering and operation 2009  Moser, Robert D, Jayapalan, Amal R, Garas, Victor Y And Kurtis, Kimberly E, Assessment of Binary and Ternary mixes of Metakaolin and Class C Fly Ash for Alkali- Silica response Mitigation in Concrete, Cement and Concrete disquisition, pp. 1664- 1672.  Couthino JS. The combined benefits of CPF and RHA in perfecting the duration of concrete structures. Cem Concr Compos. 2003; 2551- 9.  Siddique R, KlausJ. Influence of Metakaolin on the characteristics of Mortar and Concrete- A Review. Appl Clay Sci. 2009; 43392- 400  Raheem AA, Ikotun BD. objectification of Agrarian remainders as Partial replacement for Cement in Concrete and Mortar. J Build Eng. 2020; 31( 101428)  Birick H, Akoz F, Berktay I, Tuglar AN. Study of Pozzolanic characteristics of Wheat Straw Ash. Cem Concr Res. 1999; 29637- 43.  RaheemKA., Abdulwahab, R, Kareem MA. Objectification of metakaolin and Nanosilica in Blended Cement Mortar and Concrete- A Review. J Clean Prod. 2021; 1.12.  Razak, H. Chai, H, K. and Wong, H, S., 2004. Near Surface Characteristics of Concrete containing drag- plementary Cementing Accoutrements. Cement and Concrete exploration, 26, pp. 883- 889.  Godwin, A, A. Maurice, E, E. Akobo, I.Z.S and Joseph, O, U., 2013. Structural characteristics of Rice Husk Ash Concrete, International Journal of Engineering and Applied knowledge, Vol. 3(3), pp57- 62.  Nagrale, S, D. Hemant, H. and Pankaj, R, M., 2012. Application of Rice Husk Ash, International Journal of Engineering Research and Applications (IJERA), Vol. 2(4), pp. 1- 5.  Shivram Bagade and NageshPuttaswamy., 2007. Beforehand High Strength Concrete Advantages and CR, pp. 38- 41.  Ong, Chee Huat (2006) Performance of concrete containing metakaolin as cement replacement material.  Kumar A, Mohmata K , Kumar D , Parkash O. (2012). Properties and industrial application of Rice husk : A review. IJETAE. Vol.2.
Copyright © 2022 Jitender ., Shivani Thakur, Sonia .. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.