International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 02 Issue: 09 | Dec-2015 www.irjet.net p-ISSN: 2395-0072 STRENGTH PROPERTIES OF META KAOLIN & FLY ASH PLANE CEMENT CONCRETE Dr. Rajamanya V. S.1, Kulkarni N. K.2 1 Professor & HOD, Department of Civil Engineering, MBES College of Engineering, Ambajogai, Maharashtra,India 2 Asst. Professor, Department of Civil Engineering, MBES College of Engineering, Ambajogai, Maharashtra,India ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - The present report deals with the effects of the use of Natural Pozzolans like Meta kaolin as a possible mineral admixtures, by partial replacement of cement, partial replacement for cement. Amongst the various in terms of improved performance on compressive and methods used to improve the durability of concrete, and to flexural strengths.Experimental work was carried out achieve high performance concrete, the use of Meta kaolin to investigate the effect of Meta kaolin and Fly ash by is a relatively new approach. Meta kaolin, or heat-treated partial replacing cement and keeping same water clay, may be used as a Supplementary Cementations cement ratio to ordinary concrete & meta kaolin and fly Material in concrete to reduce cement consumption, to ash. In this program we are going to construct 48 cube increase strength. Meta kaolin reduces the porosity of samples of size 150mmx150mmx150mm for different concrete. Plain concrete possesses a very low tensile percentages of Meta kaolin and Fly ash with partial strength, limited ductility and little resistance to cracking. replacement of cement will casted and tested. The Concrete is one of the most common materials used in the concrete mixes had 0%,5%,10%,15% of Fly ash and construction industry. Meta Kaolin, replacing cement partially, so as to In the past few years, many research and modifications determine the best proportion, which would give has been done to produce concrete with desired maximum compressive strength. It reveals that with characteristics. Concrete is the most widely used and 10%Meta kaolin and Flyash each partial replacement versatile building material having high compressive of cement were found to be most favorable strength, by additions of some Pozzolanic materials, the combinations for casting of concrete flexural various properties of concrete wiz, workability, durability members.Using the optimum mix proportion giving the ,strength, resistance to cracks and permeability can be improved. The use of Meta kaolin as a partial cement best results in compressive strength of cube testing, replacements material in mortar and concretes has been beam specimens will casted and tested for their flexural studied in recent years, despite of numbers of studies, use strength. The dimensions of each beam will 750mm of Meta kaolin is still not popular in practice. The use of x150mm x 150mm.The beams Will tested on universal cement replacing materials fundamental in developing low testing machine to verify their flexural strength after cost construction materials . Concrete is the most widely 7days, 28 days of curing with single point load. The used and versatile building material which is generally results will compare with the beams of varying flexural used to resist compressive forces. By addition of some pozzolanic materials, the various properties of concrete strength of Plane Cement Concrete , Plane Cement viz., Compressive Strength, Flexural Strength Porosity can Concrete with Meta kaolin & Fly ash. be improved. Key Words: Compressive Strength; Flexural Strength; Metakaolin; Fly ash; Flue Gases 2. RESEARCH SIGNIFICANCE The presented research is aimed at studying the properties like optimum percentage of Meta Kaolin and 1. INTRODUCTION Fly Ash with partial replacement of cement, to determine the optimum concrete mix. The optimum concrete mix is This recent report aimed at energy conversation in the used to determine the compressive, flexural strength. The cement and concrete industry has in part, focused on the study also aims at determining the flexural strength of use of less energy intensive materials such as Fly ash, Slag the concrete beams based on the cross sectional and Silica Fume. Lately some attention has been given to dimensions, span and amount of meta kaolin + fly ash used © 2015, IRJET ISO 9001:2008 Certified Journal Page 115 International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 02 Issue: 09 | Dec-2015 www.irjet.net p-ISSN: 2395-0072 and compared with actual strength obtained based on cement paste undergoes distinct densification. The experimental results. The research findings will help improvement offered by this densification includes an engineers to understand the overall performance of increase in strength and decrease in permeability. The concrete for flexural strength & compressive strength. Meta kaolin using as a cement replacement in concrete Experimental Program and Setup- The main aim of this experimentation is to study the countertop mixes, instead of other pozzolans such as silica effect of partial replacement of cement by Meta kaolin & flume, fly ash to: fly ash on the properties of concrete. Boost compressive strength The experimental programme is divided in four phases. Make finishing easier a) Concrete mix design as per IS 10262-2009 for M20 and Reduce efflorescence M25 grade of concrete. Meta Kaolin, Fly Ash after partial Maintain colour, especially in Other Portland Cement replacement of cement with varying percentages. Fly Ash b) Casting of cubes and beams Fly ash, is also known as flue-ash, it is one of the c) Curing of cubes and beams for 7 days and 28 days residues generated in combustion, and comprises the fine d) Testing of all beam specimens with single point loading particles that rise with the flue gases. In an industrial for flexural strength and compressive strength for all context, fly ash usually refers to ash produced during cubes. combustion of coal. In India, fly ash was used for the first time in construction of Rihand Irrigation Project, Uttar Pradesh in 1962, replacing cement up to about 15%. ASTM broadly classified fly ash into two classes as Class F fly ash: Fly ash normally produced by burning anthracite or bituminous coal, usually has been than 5% CaO. Class F fly ash has pozzolanic properties only. Class C fly ash: Fly ash normally produced by burning Fig.(a) Point Load Beam lignite or sub-bituminous coal. Some fly ash may have CaO content in excess of 10%. In addition to pozzolanic properties, class C fly ash also possesses cementations Test Setup and Procedure - properties. The beam specimen will simply supported with a Mix Proportions concentrated load applied at mid span, as shown in figure. Table (1): Mix Proportions for M20 & M25 per m3 Load was applied by using UTM (40 tons capacity) in 40kg Mix Cement Sand Aggregat Wate MK+FA increments up to failure load. At each load increment, Description (Kg/m3 (Kg/m e r (Kg/m3 cracks will inspected and marked, and the beam is ) 3) (Kg/m3) (Lit.) ) photographed. Continuous monitoring will carried out all M20 through the testing. After 7& 28 days curing period, the specimens is taken outside the curing tank and will tested 0% 383 735 1103 192 - under a compression testing machine of 200 ton capacity 5% 363.85 735 1103 192 19.15 for compressive strength. The crushing loads will noted 10% 344.70 735 1103 192 38.30 and the average compressive strength of three specimens 15% 325.55 735 1103 192 57.45 is determined. M25 Materials - 0% 426.66 721.4 1082.18 213 - Meta Kaolin 6 Considerable research has been done on natural 5% 405.33 721.4 1082.18 213 21.33 pozzolans, namely on thermally activated ordinary clay 6 and kaolinitic clay. These unpurified materials have often 10% 384 721.4 1082.18 213 42.66 been called “ Meta kaolin”. Such a product, white or cream 6 in colour, purified, thermally activated is called High 15% 362.66 721.4 1082.18 213 64 Reactive Meta kaolin(HRM).High reactive meta kaolin 6 shows high pozzolanic reactivity and reduction in Ca(OH)2 even as early as one day. It is also observed that the © 2015, IRJET ISO 9001:2008 Certified Journal Page 116 International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 02 Issue: 09 | Dec-2015 www.irjet.net p-ISSN: 2395-0072 Specimen Casting 48 cube samples of size 150mmx150mmx150mm for different percentages of MK and FA in partial replacement of cement were casted. The concrete mixes had 25 0%,5%,10% & 15% of Meta kaolin & Fly Ash with partial 20 replacement of cement. After final setting of cubes, the cube moulds were removed and cubes were kept in 15 water tank for curing up to 7days & 28 days. All 48 beam 0% 10 specimen size 750mmx150mm x150mm were casted 5% with optimum compressive strength for the specific mix 5 in single lift and consolidated using tamping rods. After 10% 0 setting, the beams were kept for curing in water tank. 15 Average of three cubes is taken for compressive strength 7 Day 28 Day and average of three beams were taken for flexural strength. Fig. (b) Compressive Strength for M20 Grade Concrete 3. RESULT Compressive Strength 30 The result of compressive strength were plotted in below 25 Table(2) and shown in fig. (b) & fig. (c) 20 0% 15 5% Result indicate that if we increase percentage of meta 10 10% kaolin and fly ash up to 10-15 % will give us a good results 5 and help to increase compressive strength of concrete. 0 15% 7 Day 28 Day Table (2) Compressive strength of various types of concrete at different ages Compressive Strength Mix ( N/mm2) Description 7 Days 28 Days Fig. (c) Compressive Strength for M25 Grade Concrete M20 Flexural Strength 0% 14.67 19.11 Table (3) and fig.