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Partheeban, P.
- Granite Powder Concrete
Abstract Views :544 |
PDF Views:252
Authors
Affiliations
1 Dept. of Civil Engg., Sathyabama University, Chennai-600 912, IN
2 Principal, Sriram Engineering College, Chennai-600 054, IN
1 Dept. of Civil Engg., Sathyabama University, Chennai-600 912, IN
2 Principal, Sriram Engineering College, Chennai-600 054, IN
Source
Indian Journal of Science and Technology, Vol 3, No 3 (2010), Pagination: 311-317Abstract
This paper examines the possibility of using granite powder as replacement of sand and partial replacement of cement with fly ash, silica fume, slag and superplasticiser in concrete. The percentage of granite powder added by weight was 0, 25, 50, 75 and 100 as a replacement of sand used in concrete and cement was replaced with 7.5% silica fume, 10% fly ash, 10% slag and 1% superplasticiser. The effects of water ponding temperatures at 26°C and 38°C with 0.4 water-to-binder (w/b) ratios on mechanical properties, plastic and drying shrinkage strain of the concrete were studied and compared with natural fine aggregate concrete. The test results obtained indicate that granite powder of marginal quantity as partial sand replacement has beneficial effect on the mechanical properties such as compressive strength, split tensile strength, modulus of elasticity. Furthermore, the test results indicated that the values of both plastic and drying shrinkage of concrete in the granite powder concrete specimens were nominal than those of ordinary concrete specimens.Keywords
Granite Powder, Fly Ash, Silica Fume, Superplasticiser, Concrete, Mechanical Properties, ShrinkageReferences
- Adam Neville and Pierre-Claude Aitcin (1998) High performance concrete– an overview. Materials Structures. 111 –117.
- Al-Amoudi OSB, Maslehuddin M and Abiola TO (2004) Effect of type and dosage of silica fume on plastic shrinkage in concrete exposed to hot weather. Construction Building Material. 18, 737-743.
- Bharatkumar BH, Narayan R, Raghuprasad BK and Ramachandramurthy DS (2001) Mix proportioning of high performance concrete. Cement Concrete Composites. 23, 71–80.
- Francis A Qluokun (1994) Fly ash concrete mix design and the water-cement ratio law. ACI Material J. 362-367.
- Haque MN and Kayali O (1998) Properties of high-strength concrete using a fine fly ash. Cement Concrete Res. 1445–1452.
- IS: 516 (1959) Methods of tests for strength of concrete. Bureau Ind. Stds. New Delhi, India.
- Job T (2005) Utilization of quarry powder as a substitute for the river sand in concrete. J. Structural Engg. 401-407.
- Kefeng Tan and Xincheng Pu (1998) Strengthening effects of finely ground fly ash, granulated blast furnace slag, and their combination. Cement Concrete Res. 1819-1825.
- Mitchell DRG, Hinczak I and Day RA (1998) Interaction of silica fume with calcium hydroxide solutions and hydrated cement pastes. Cement Concrete Res. 1571-1584.
- Shetty MS (2007) Concrete technology-theory and practice. S. Chand and Company Ltd, New Delhi, India.
- SP23 (1983) Handbook on concrete mixes. Bureau Ind. Std. New Delhi, India.
- Swamy RN (1991) Mineral admixtures for high-strength concrete. Ind. Concrete J. 265-271.
- Xiaofeng Cong, Shanglong Gong, David Darvin and Steven L McCabe (1992) Role of Silica fume in compressive strength of cement paste, mortar and Concrete. ACI Materials J. 375-386.
- Zain MFM and Matsufuji Y (1997) The Influence of curing methods on the physical properties of high strength concrete exposed to medium temperature (20oC-50oC). In: Proc. 5thIntl. Conf. on Concrete Engg. & Technol., Kuala Lumpur, Malaysia. pp: 57-66.
- Assessment of Physico-Chemical Characteristics of Groundwater in Chennai
Abstract Views :154 |
PDF Views:0
Authors
Affiliations
1 Jawaharlal Nehru Technological University, Hyderabad, Andhra Pradesh, IN
2 St. Peters College of Engineering and Technology, Chennai, IN
1 Jawaharlal Nehru Technological University, Hyderabad, Andhra Pradesh, IN
2 St. Peters College of Engineering and Technology, Chennai, IN
Source
Nature Environment and Pollution Technology, Vol 11, No 4 (2012), Pagination: 705-709Abstract
The present work is aimed to analyse physico-chemical characteristics of groundwater in a part area of Chennai, where agriculture is the main livelihood of rural and urban people and the groundwater is the main source for irrigation and drinking. It is noted that in Tamil Nadu, there is evidently much dependence on groundwater due to scarce surface water. Overexploitation of groundwater might lead to complex environmental situation. Hence, a thorough investigation of quality parameters is necessary to ensure the potability of water. The area taken for study purpose is Karayanchavadi which is a part of Chennai in the vicinity of Bay of Bengal. Groundwater samples were collected from 30 wells in the study area and analysed for pH, EC, TDS, TA, TH, Ca2+, Mg2+, Na+, K+, Cl-, SO4-2, NO3- and F-. A comparison of the groundwater quality in relation to drinking water quality was made. It was found that pH of all the samples was neutral to slightly alkaline. Fluorides, iron and calcium of 90% samples were within the permissible limits. Total dissolved solids, total hardness, sulphate and magnesium of all the samples were within the permissible limits.Keywords
Agriculture, Groundwater, Water Quality, Chennai, Karayanchavadi.- Influence of Si/Al Ratio on the Compressive Strength of Metakaolin Based Geopolymers
Abstract Views :176 |
PDF Views:140
Authors
Affiliations
1 Department of Civil Engineering, St. Peter’s University, Avadi, Chennai-600054, Tamil Nadu, IN
2 St. Peter’s College of Engineering and Technology, Avadi, Chennai-600054, Tamil Nadu, IN
1 Department of Civil Engineering, St. Peter’s University, Avadi, Chennai-600054, Tamil Nadu, IN
2 St. Peter’s College of Engineering and Technology, Avadi, Chennai-600054, Tamil Nadu, IN
Source
International Journal of Earth Sciences and Engineering, Vol 9, No 1 (2016), Pagination: 87-91Abstract
The environmental impact of production of cement has left the construction industry with little choice but to develop an alternative material.Geopolymer synthesis has promising potential in that direction Alkali activation of alumino silicate raw marterialproduces geopolymer. Flyash is a widely used precursor in geopolymer. Flyash (FA) based geopolymer is porous and hence less durable. Metakaolin (MK) is rich in alumino silicate (Sio 2-52%, Al 2O 3-46%) and has smaller particle size (3.5 μm) and high specific area (20 m2/g) compared to flyash. MK based geopolymers are expected to give higher strength and less porous than FA based geopolymer. This research aims to investigate the use of MK asa precursor in geopolymer synthesis as a replacement for flyash in various percentages to utilize the advantages of MK over flyash. MK based concrete cured at different temperatures and various solid/liquid ratios are tested for compressive strength. Experimental investigation of FA-MK based geopolymer in this research is found to have 11% to 65% less compressive strength compared to FA based geopolymer when replaced by 10% to 40% of MK. Lesser strength is attributed to the Si/Al ratio of the MK precursor.Keywords
Geopolymer Concrete, Metakaolin, Flyash, Compressive Strength, Alkali Activator and Sodium Silicate.- Experimental Investigation on Recycled Rubber Filled Concrete
Abstract Views :146 |
PDF Views:99
Authors
Affiliations
1 Department of Civil Engineering, St.Peter’s University, Avadi-600054, Chennai, IN
2 Department of Civil Engineering, St.Peter’s College of Engineering and Technology, Avadi-600054, Chennai, IN
1 Department of Civil Engineering, St.Peter’s University, Avadi-600054, Chennai, IN
2 Department of Civil Engineering, St.Peter’s College of Engineering and Technology, Avadi-600054, Chennai, IN