Fly Ash Cement Concrete for Construction B Manoj Yadav 1 Professor, QIS College of Engineering

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1 Volume 118 No , 1- ISSN: (printed version); ISSN: (on-line version) url: ijpam.eu Abstract Fly Ash Cement Concrete for Construction B Manoj Yadav 1 Professor, QIS College of Engineering manch0431@gmail.com The main theme of Fly Ash Cement Concrete is to study the physical, chemical and mechanical properties of fly ash cement concrete. By experimental results it had been shown that about 0% of cement and 30% of fly ash had been performing good in construction. By using Flyash, the cost of materials in construction can be reduced and also green-house gas emission can also be reduced. The test results of slump test gave sufficient compressive strength. Keywords: Concrete mixture, construction, fly ash, pavement. 1. Introduction: Firstly, fly ash cement concrete was used in the construction of Hoover dam in 1929 which was located in U.S, next it was used in Hungry Horse Dam using 1,20,000 metric tones of fly ash in the construction of dam. Fly ash is also known as pozzolana which is composed of aluminous and siliceous material when reacts with water it forms a cement.when this compound is mixed with lime and water it forms another compound which is similar to Portland cement. The size of the particles will be spherical which reduces internal friction there by increasing consistency and mobility. The main difference between fly ash cement and Portland cement is fly ash cement is less dense which results in smoother surface and sharper. For the past 60 years fly ash has been used as mineral admixture in PCC. For the production of Portlandpozzolana blended cement it can be used as a feed material. A close observation should be monitored when fly ash material is used in PCC because of Fineness, loss on ignition and chemical properties are the most important characteristics that affecting its use in concrete. Fly ash used in concrete should have sufficient pozzolanic reactivity and must be consistent. 2. Methodology: During the work, we have developed two types of specimens for testing, first one is mixture of fly ash and Portland cement for road pavement and secondly plain Portland cement for road pavement. For preparing first specimen fly ash, Portland cement, aggregates and water are used and for preparing second specimen Portland cement, aggregates and water are used. for doing the test firstly gather all the materials at one place and mix all the materials in equal proportion, after mixing the mixture should be 1

2 place in the moulds which may be rectangular or cylindrical and a total of twelve rectangular specimens and twelve cylindrical specimens are prepared, out of twelve specimens two specimens in each are required for testing purpose for finding its compressive and tensile stress. Then the specimen is allowed for curing process for the purpose of hydration. The moulds must be removed during th, th, 21 st for testing. Test results will be obtained and interpretation must be done. 3. Results and Discussion: Table 1. Physical and Chemical Properties. Materials Physical Property Chemical Property Fly ash Fine particles spherical in shape and mostly glassy in nature Calcium hydroxide, calcium sulfate and glassy components in combination with silica and alumina. Sand The available sizes are 150mm (sieve no:160), 300mm (sieve no:50), 600mm (sieve no.30), and 1.18mm(sieve no.16) Clay and silica- it gives characteristic colour for cementitious substance. Gravel Small pebbles of rock fragments Crystalline silica. Cement Grayish power It is characterized as a paste component. Mix Proportion: The mix proportion used is 1:2:4, the volume of each raw material is taken per cubic meter of concrete mixture. The tabular column showing mix proportion of each material. Table 2. Mix Proportions. Raw materials Volume per cubic mixture of concrete Fly ash cement Plain cement Fly ash 0.04m 3 - Gravel 0.5m 3 0.5m 3 Sand 0.29m3 0.29m 3 Cement 0.1m 3 0.m 3 2

3 Total volume 1.0m 3 1.0m 3 Actual weight and dimensions: The actual weight and dimension of rectangular mould is 154mm 154mm 460mm and the dimension of cylindrical mould is of 154mm and height of 306mm Table 3. Actual Weight and Dimension of Rectangular Mould Table 3.1 Days Table 3.2 Days Plain concrete L W Th Area (mm 2 ) Weight (kg) Specimen A B C A B C Fly ash concrete L W Th Area (mm 2 ) Weight (kg) Specimen A B C A B C Table 4. Flexural strength test result of rectangular specimens Time (days) Fly ash cement concrete capacity(kn) Ultimate strength(mpa) Plain cement concrete capacity(kn) Ultimate strength(mpa)

4 Table 5. Compressive strength test results of a cylindrical specimen Time (days) Fly ash cement concrete Ultimate strength capacity (in MPa) (in kn) Plain cement concrete capacity (in kn) Ultimate strength (in MPa) Conclusion: In present study physical properties of cement, fly ash, and fine aggregates are determined, and then slump test conducted to check concrete workability, and compressive strength test to check its quality and compressive strength. References: 1)Nollet, Removal of PCBs from Wastewater using Fly Ash 2) N. Shigemoto, H. Hayashi and K. Miyaura, Selective Formation of Na-X Zeolite from Coal Fly ash by Fusion with Sodium Hydroxide Prior to Hydrothermal Reaction 3) C. Chrisp, L. Fisher and J. E. Lammert, Mutagenicity of Filtrates from Respirable Coal Fly Ash 4) M. Rýznarová, Sorption of Dyes from Aqueous Solutions onto Fly Ash, Water Research 5) Tomas U. GanironJr, Analysis of Fly Ash Cement Concrete for Road Construction, International Journal of Advanced Science and TechnologyVol.60, (2013), pp

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