Performance of Pozzolanic Concrete Using Different Mineral Admixtures

Muhammad Burhan Sharif, Abdullah Anjum, Muhammad Akram Tahir, Muhammad Yousaf

Abstract


Concrete is probably the most extensively used construction material in the world. However, environmental concerns regarding rapid consumption of natural resources and CO2 emission during cement manufacturing process have brought pressure to reduce cement consumption by the use of cement replacement materials (CRMs). The utilization of calcined clay (metakaolin) and silica fume in concrete has received considerable attention in recent years. Brick powder has not got much popularity with respect to strength enhancement but it is effective to reduce drying shrinkage. The following study has been focused to determine the performance of locally available metakaolin, silica fume and brick powder as CRMs in concrete. This study focuses on compressive strength, drying shrinkage and sulfate attack properties of the concrete. Concrete cubes were used for compressive strength determination and mortar prisms for determination of drying-shrinkage and sulfate attack. 5%, 10% and 15% replacement of cement was used for all these three CRMs. Three mixtures with water-binder ratios of 0.63, 0.54 and 0.47 were prepared with a slump of 75-100mm. The sulfate attack was determined by immersing mortar prisms in 2, 5 and 10% solution of magnesium sulfate. The results revealed that silica fume concrete at optimum replacement level of 15% gave highest compressive strength. The lowest drying shrinkage was experienced in case of mortar prisms constituting brick powder. However, very low expansion was observed in SF and MK pastes and also found mutually comparable to each other.

Full Text:

PDF

References


Sasturkar P.J., FRC – A New Sustainable Option for Construction to Mitigate Earthquakes, World Academy of Science, Engineering and Technology, (2011), 73, 926- 931.

Rehan R. and Nehdi M., Carbon dioxide emissions and climate change, policy implications for the cement industry, Environmental Science & Policy, 8(2005), 105–114.

Gäbel K. and Tillman A., Simulating operational alternatives for future cement production, J Clean Prod., 13(2005), 1246–57.

Mazloom M., Ramezanianpour A.A., Brooks J.J., Effect of silica fume on mechanical properties of high-strength concrete, Cement and Concrete Composites, 26(2004), 347-357.

Burg, R. G., and Ost B. W., Engineering Properties of Commercially Available HighStrength Concretes (Including Three-Year Data), Research and Development Bulletin RD104, Portland Cement Association, 62 (1994).

Poon C.S., Kou S.C. and Lam L., Compressive Strength, Chloride Diffusivity and Pore Structure of High Performance Metakaolin and Silica Fume Concrete, Construction and Building Materials, (2005), 223-239.

Al-Amoudi OSB, Maslehuddin M. Ablola, Effect of type and dosage of silica fume on plastic shrinkage in concrete exposed to hot weather, Construct Build Material, 18(2004), 737–743.

Mangat P.S., Khatib J.M., Influence of fly ash, silica fume, and slag on sulfate resistance of concrete, ACI Materials Journal, 92(5)(1995), 542–552.

Lee S.T., Moon H.Y., Swamy R.N., Sulfate attack and role of silica fume in resisting strength loss, Cement & Concrete Composites, 27(2005), 65–76.

Shannag M.J., Hussein A Shaia, Sulfate resistance of high-performance concrete, Cement and Concrete Composites, 25(3)(2003), 363-369.

Rao, G.A., Influence of Silica Fume Replacement of Cement on Expansion and Drying Shrinkage, Cement and concrete research, 28 (10)(1998), 1505-1509.

Al-Amoudi, OSB, ,Maslehuddin, M., Shameem, M., and Ibrahim, M., Shrinkage of Plain and Silica Fume Cement Concrete Under Hot Weather, Cem. Conc. Com., 29(2007), 690–699.

Zhang M.H., Tam C.T., Leow M.P., Effect of water-to-cementitious materials ratio and silica fume on the autogenous shrinkage of concrete, Cement and Concrete Research., 33(2003), 1687–1694.

Bhanja S., Sengupta B., Optimum silica fume content & its mode of action on concrete, ACI Materials Journal, 100(5)(2003), 407-412.

AppaRao G., Investigations on the performance of silica fume-incorporated cement pastes and mortars, Cement and Concrete Research, 33(11)(2003), 1765-1770.

Sharif M.B. and Tahir M.A., Development of Local metakaolin as a pozzolanic material, Mehran University Research Journal of Engineering and Technology, 29(1)(2010), 89- 96.

Philippe J.P. Gleize, Martin Cyr, Gilles Escadeillas, Effects of metakaolin on autogenous shrinkage of cement pastes, Cement and Concrete Composites, 29(2007), 80-87.

Brooks J.J., MegatJohari M.A., Effect of metakaolin on creep and shrinkage of concrete, Cement and Concrete Composites, 23(2001), 495-502.

Sabir B.B., Wild S., Bai.J, Metakaolin and calcined clays as pozzolans for concrete: a review, Cement and Concrete Composites, 23(2001), 441–454.

Ding J., Li Z., Effects of metakaolin and silica fume on properties of concrete, ACI Materials Journal, 99(4)(2002), 393–398.

Nabil M. Al-Akhras, Durability of metakaolin concrete to sulfate attack, Cement and Concrete Research, 36(2006), 1727–1734.

OngCheehuat, Performance of concrete containing metakaolin as cement replacement, Msc. Thesis, id 2198, (2006), university teknologi Malaysia.

Khatib,J.M, Metakaolin concrete at a low water to binder ratio, Construction and Building Materials, 22(2008), 1691-1700.

M. Kamal Uddin, Use of brick dust in concrete as mineral admixture and partial replacement of cement, Journal of Civil Engineering, 32(1)( 2004), 69-78.






Copyright (c) 2016 Burhan Sharif

Powered By KICS