Abstract
Curing of concrete is important to ensure both strength and durability. Loss of water through evaporation reduces the hydration rate and eventually results in limited strength and higher permeability. Generally, curing is done by supplying additional water from external sources to prevent the water loss. Such curing requires skilled labor and proper knowledge. However, in a developing country like Bangladesh, it is considered as an additional step and often neglected. Under such scenario, Internal Curing (IC) could be adopted to improve the overall quality of general concreting work. Utilization of locally available burnt clay chip aggregate commonly known as Brick Chips (BC) to produce internally cured concrete can be considered as an effective solution. The pore spaces of these aggregates absorb water during saturation process and later desorb water under favorable conditions of higher temperature and low relative humidity. As a result, no external curing water is needed. This study shows the durability performance of concrete having BC as internal curing medium. Stone chips have been partially replaced by BC since concrete with BC alone produces weaker concrete. Three commonly practiced water cement ratios of 0.4, 0.45 and 0.5 and five curing conditions were selected to simulate inside and outside environmental conditions. Three different percent replacements (10%, 20% and 30%) of stone chips by BC were selected. Control samples with stone chips were also made for comparison. Water permeability test and Rapid Chloride Permeability Test (RCPT) were performed. It is found that durability of internally cured concrete with polythene sheet covering is comparable to the durability of normally cured control concrete. Moreover, under adverse curing conditions with no supply of external water, internally cured concrete performed significantly better than control samples. Therefore, BC can be used as a cost effective internal curing material in Bangladesh to produce durable concrete.
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Afroz, S., Rahman, F., Iffat, S., and Manzur, T. (2015). “Sorptivity and strength characteristics of commonly used concrete mixes of bangladesh.” Proc., International Conference on Recent Innovation in Civil Engineering for Sustainable Development, DUET, Bangladesh.
ASTM C 1202-97 (1997). “Standard test method for electrical indication of concrete’s ability to resist chloride ion penetration.” ASTM International, West Conshohocken, PA.
ASTM C128-01 (2001). “Standard test method for density, relative density (Specific Gravity), and absorption of fine aggregate.” ASTM International, West Conshohocken, PA.
ASTM C136-01 (2001). “Standard test method for sieve analysis of fine and coarse aggregates.” ASTM International, West Conshohocken, PA.
ASTM C29-97 (1997). “Standard test method for bulk density (“Unit Weight”) and voids in aggregate.” ASTM International, West Conshohocken, PA.
ASTM C39-14a (2003). “Standard test method for compressive strength of cylindrical concrete specimens.” ASTM International, West Conshohocken, PA.
Bentz, D. P. (2000). “CEMHYD3D: A three-dimensional cement hydration and microstructure development modelling package, Version 2.0.” NIST Internal Report 6485, U.S. Department of Commerce, DOI= 129.6.13.25.
Bentz, D. P. and Weiss, W. J. (2010). “Internal Curing: A 2010 State-ofthe-Art Review.” NISTIR 7765, National Institute of Standards and Technology, U.S. Department of Commerce, DOI: 10.1.1.190.5522.
Bentz, D. P., Lura, P., and Roberts, J. W. (2005). “Mixture proportioning for internal curing.” Concrete International, Vol. 27, No. 2, pp. 35–40.
Bosunia, S. Z. and Chowdhury, J. R. (2001). “Durability of concrete in coastal areas of bangladesh.” Journal of Civil Engineering, IEB, Vol. CE 29, No. 1.
BS EN12390-8-2009 (2009). “Testing hardened concrete Part 8: Depth of penetration of water under pressure.” British Standards Institution, London, UK,BSI.
BS EN197-1-2000 (2000). “Part 1: Composition, specifications and conformity criteria for common cements.” British Standards Institution, London, UK,BSI.
ESCSI (2012). “Internal curing, helping concrete realize its maximum potential.” Expanded Shale, Clay and Slate Institute, Publication #4362.1.
Geiker, M., Bentz, D. P., and Jensen, O. M. (2004). “Mitigating autogenous shrinkage by internal curing.” American Concrete Institute, Vol. 218, pp. 143–154, DOI: 10.14359/13060.
Grace, W. R. (2006). “Understanding AASHTO T277 and ASTM C1202 Rapid chloride permeability test.” Technical Bulletin, TB0100 (Concrete).
Hossain, T. (2012). “Pervious concrete using brick chips as coarse aggregate: An experimental study.” Journal of Civil Engineering, IEB, Vol. 40, No. 2, pp. 125–137.
Iffat, S. (2014). Efficiency of internal curing in concrete using local materials with different curing conditions, M.Sc. in Civil Engineering (Structural) Thesis, Bangladesh University of Engineering and Technology, Dhaka, Bangladesh.
Iffat, S., Emon, A. B., Manzur, T., and Ahmad, S. I. (2014). “An Experiment on Durability Test (RCPT) of concrete according to ASTM standard method using low-cost equipments.” Advanced Materials Research, Vol. 974, Switzerland, DOI: 10.4028/www. scientific.net/AMR.974.335.
Kim, H. and Bentz, D. P. (2008). “Internal curing with crushed returned concrete aggregates for high performance concrete.” NRMCA Concrete Technology Forum, Focus on Sustainable Development.
Lura, P. (2003). Autogenous deformation and internal curing of concrete, PhD Thesis, Delft University, Delft, The Netherlands.
Manzur, T., Iffat, S., and Noor, M. A. (2015). “Efficiency of sodium polyacrylate to improve durability of concrete under adverse curing condition.” Advances in Materials Science and Engineering, Vol 2015, Article ID 685785, Hindawi Publishing Corporation, DOI: 10.1155/2015/685785.
Mather, B. (2004). “Self-Curing concrete, why not?.” Concrete International, Vol. 23, No. I, pp. 46–47.
Obla, K., Kim, H., and Lobo, C. (2007). “Crushed returned concrete as aggregates for new concrete.” NRMCA Report, Project 05-13.
Philleo, R. E. (1991). “Concrete science and reality.” Materials Science of Concrete II, J. Skalny and S. Mindess, eds., American Ceramic Society, Westerville, OH,pp. 1–8.
Ptefier, D. W., McDonald, D. B., and Krauss, P. D. (1994). “The rapid chloride permeability test and its correlation to the 90 day Chloride Ponding Test.” PCI Journal, Vol. 39, pp 38–47.
Schlitter, J. (2010). “Development of internally cured concrete for increased service life.” Joint Transportation Research Program, FHWA/IN/JTRP-2010/10.
Tamimi, A. K., Samarai, M. A., Elian, A., Harries, N., and Pocock, D. (2008). “Guidelines for concrete durability testing in the UAE.” Advances in Concrete Technologies, Middle East.
Yang, C. C. and Chiang, S. C. (2006). “The chloride ponding test and its correlation to the accelerated chloride migration test for concrete.” Journal of the Chinese Institute of Engineers, Vol. 29, Issue 6, DOI: 10.1080/02533839.2006.9671200.
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Iffat, S., Manzur, T. & Noor, M.A. Durability performance of internally cured concrete using locally available low cost LWA. KSCE J Civ Eng 21, 1256–1263 (2017). https://doi.org/10.1007/s12205-016-0793-x
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DOI: https://doi.org/10.1007/s12205-016-0793-x