{"title":"Effects of Paste Content on Flow Characteristics of SCC Containing Local Natural Pozzolan","authors":"Muhammad Nouman Haral, Abdulaziz I. Al-Negheimesh, Galal Fares, Mohammad Iqbal Khan, Abdulrahman M. Alhozaimy","volume":79,"journal":"International Journal of Civil and Environmental Engineering","pagesStart":532,"pagesEnd":537,"ISSN":"1307-6892","URL":"https:\/\/publications.waset.org\/pdf\/16402","abstract":"
Natural pozzolan (NP) is one of the potential
\r\nprehistoric alternative binders in the construction industry. It has
\r\nbeen investigated as cement replacement in ordinary concrete by
\r\nseveral researchers for many purposes. Various supplementary
\r\ncementitious materials (SCMs) such as fly ash, limestone dust and
\r\nsilica fume are widely used in the production of SCC; however,
\r\nlimited studies to address the effect of NP on the properties of SCC
\r\nare documented. The current research is composed of different SCC
\r\npaste and concrete mixtures containing different replacement levels
\r\nof local NP as an alternative SCM. The effect of volume of paste
\r\ncontaining different amounts of local NP related to W\/B ratio and
\r\ncement content on SCC fresh properties was assessed. The variations
\r\nin the fresh properties of SCC paste and concrete represented by
\r\nslump flow (flowability) and the flow rate were determined and
\r\ndiscussed. The results indicated that the flow properties of SCC paste
\r\nand concrete mixtures, at their optimized superplasticizer dosages,
\r\nwere affected by the binder content of local NP and the total volume
\r\nfraction of SCC paste.<\/p>\r\n","references":"
[1] Heirman G., Vandewalle L., Van Gemert D., Boel V., Audenaert K.,\r\nSchutter G., Desmet B., Vantomme J., Time-dependent deformations of\r\nlimestone powder type self-compacting concrete, Engineering Structures\r\n30 (2008) 2945–2956.\r\n[2] Hajime OKAMURA and Kazumasa OZAWA, Mix Design for Self-\r\nCompacting Concrete, Concrete Library of JSCE No.25, June, 1995,\r\npp.107-120.\r\n[3] Hajime OKAMURA and Masahiro OUCHI, Self-Compacting Concrete,\r\nJournal of advanced concrete technology, Vol. 1, No. 1, April-2003, pp.\r\n5-15.\r\n[4] Girish S. Ranganath R. Jagadish Vengala, Influence of powder and\r\npaste on flow properties of SCC, Construction and Building materials\r\n24 (2010) 2481-2488.\r\n[5] Roger P. Self-Compacting Concrete West, Trinity College Dublin.\r\n[6] Hajime OKAMURA and Kazumasa OZAWA Self-compactable high\r\nperformance concrete. International Workshop on High Performance\r\nConcrete. American Concrete Institute control; Detroit. 1994, pp. 31-44.\r\n[7] Ouchi M, Hibino M, Ozawa K, and Okamura H. A rational mix-design\r\nmethod for mortar in self-compacting concrete. Proceedings of Sixth\r\nSouth-East Asia Pacific Conference of Structural Engineering and\r\nConstruction. Taipei, Taiwan, 1998, pp1307-1312.\r\n[8] Nawa T, Izumi T, and Edamatsu Y. State-of -the-art report on materials\r\nand design of self-compacting concrete. Proceedings of International\r\nWorkshop on Self-compacting Concrete. August 1998; Kochi\r\nUniversity of Technology, Japan. pp 160-190.\r\n[9] Domone P, Chai H and Jin J. Optimum mix proportioning of selfcompacting\r\nconcrete. Proceedings of International Conference on\r\nInnovation in Concrete Structures: Design and Construction, Dundee,\r\nSeptember 1999. Thomas Telford; London. pp 277-285.\r\n[10] Billberg, P. Mix design model for SCC (the blocking criteria).\r\nProceedings of the first North American conference on the design and\r\nuse of SCC, Chicago 2002.\r\n[11] Aggarwal, Siddique, Aggarwal, Gupta Self-Compacting Concrete -\r\nProcedure for Mix Design, Leonardo Electronic Journal of Practices and\r\nTechnologies ISSN 1583-1078, 2008.\r\n[12] Koehler and Fowler, selecting aggregates for self-consolidating\r\nconcrete, The University of Texas at Austin, Austin, Texas, USA.\r\n[13] Khan and Alhozaimy, Properties of natural pozzolan and its potential\r\nutilization in environmental friendly concrete, Canadian Journal of Civil\r\nEngineering, Volume 38, Number 1, 1 January 2011 , pp. 71-78(8).\r\n[14] PCA, Design and control of concrete mixtures, Fourteenth edition\r\nVoice: 847.966.6200, 2003.\r\n[15] Shannag, High strength concrete containing natural pozzolan and silica\r\nfume, Cement & Concrete Composites 22 (2000) 399-406.\r\n[16] EFNARC, the European Guidelines for Self Compacting Concrete,\r\n2005.\r\n[17] Safiuddin, West, Soudki., Flowing ability of the mortars formulated\r\nfrom self-compacting concretes incorporating rice husk ash,\r\nConstruction and Building Materials 25 (2011) 973-978.<\/p>\r\n","publisher":"World Academy of Science, Engineering and Technology","index":"Open Science Index 79, 2013"}