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A Study on Early Age Shrinkage Behaviour of Cement Paste with Binary and Ternary Combination of Fly Ash and Pond Ash

Affiliations

  • Civil Engineering Department, NIT, Raipur, Opp. Ayurvedic College, GE Road, Raipur - 492010, Chhattisgarh, India

Abstract


Objectives: To investigate the early age shrinkage behavior of cement, when it is partially replaced with fly ash and pond ash individually and simultaneously by volume. Methods: Fifteen mixes were prepared by replacing ordinary portland cement with fly ash and pond ash up to 80 percentage by volume individually as well as combined. Shrinkage- Cone is used for early shrinkage measurement of above fifteen mixes and suitable combinations are proposed for local conditions. Findings: A comparative statement is prepared for reduction of shrinkage when cement is replaced with fly ash and pond ash individually and simultaneously. The shrinkage meter used in present study gives shrinkage in micron which gives more accurate result than other shrinkage meter used in previous research. Also ACI 209 model is modified to include supplementary cementitious materials. An equation is proposed which has given satisfactory results with partial replacement of cement with fly ash and pond ash. Applications/Improvements: Generally shrinkage of concrete depends upon temperature and humidity. Due to high rate of shrinkage, cracks develop on the surface of the structure and reduce its durability. Shrinkage strain reduces by replacement of cement with both fly ash and pond ash individually and simultaneously. Hence the binary or ternary combination of cement concrete with supplementary cementitious materials may be beneficial for construction of structure in hot humid region.

Keywords

ACI 209 Model, Fly ash, Pond ash, Replacement Material, Shrinkage-Cone.

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References


  • Farshad R, Gaurav S, Jason W. Interactions between Shrinkage Reducing Admixtures (SRA) and Cement Paste’s Pore Solution. Cement Concrete Research (Elsevier). 2008; 38(5):606-15.
  • Bala Muhammad and Ismail Mohammad. Performance of Hydrocarbon Particles on the Drying Shrinkage of Cement Mortar. Construction and Building Materials (Elsevier). 2013; 48:868-73.
  • Chindaprasirt P, Homwuttiwong S and Sirivivatnanon V. Influence of Fly Ash Fineness on Strength, Drying Shrinkage and Sulfate Resistance of Blended Cement Mortar. Cement and Concrete Research (Elsevier). 2004; 34:1087-92.
  • Zhang Wenyan, Hama Yukio and Na Seung Hyun. Drying Shrinkage and Microstructure Characteristics of Mortar Incorporating Ground Granulated Blast Furnace Slag and Shrinkage Reducing Admixture. Construction and Building Materials (Elsevier). 2015; 93:267–77.
  • Antonio A. Melo Neto, Cincotto Maria Alba and Repette Wellington. Drying and Autogenous Shrinkage of Pastes and Mortars with Activated Slag Cement. Cement and Concrete Research (Elsevier). 2008; 38:565-74.
  • Atis Cengiz Duran, Bilim Cahit, Celik O Zlem and Karahan Okan. Influence of Activator on the Strength and Drying Shrinkage of Alkali-Activated Slag Mortar. Construction and Building Materials (Elsevier). 2009; 23:548-55.
  • Appa Rao G. Long-Term Drying Shrinkage of Mortar-Influence of Silica Fume and Size of Fine Aggregate. Cement and Concrete Research (Elsevier). 2001; 31:171-75.
  • Hong-Zhu Quan and Kasami Hideo. Experimental Study on Effects of Type and Replacement Ratio of Fly Ash on Strength and Durability of Concrete. The Open Civil Engineering Journal. 2013; 7:93-100.
  • Wongkeo Watcharapong, Thongsanitgarn Pailyn and Chaipanich Arnon. Compressive Strength and Drying Shrinkage of Fly Ash-Bottom Ash-Silica Fume Multi-Blended Cement Mortars. Materials and Design (Elsevier). 2012; 36:655-62.
  • Cheah Chee Ban and Ramli Mahyuddin. Mechanical strength, durability and drying shrinkage of structural mortar containing HCWA as partial replacement of cement. Construction and Building Materials. 2012; 30:320-29.
  • Umamaheswaran V, Sudha C, Ravichandran PT and Kannan Rajkumar PR. Use of M Sand in High Strength and High Performance Concrete. Indian Journal of Science and Technology. 2015; 8(28):1-8.
  • Gupta SM, Aggarwal P and Aggarwal Y. Shrinkage of High Strength Concrete. Asian Journal of Civil Engineering (Building And Housing). 2006; 7(2):183-94.
  • Neubauer CM, Jennings HM and Garboczi EJ. Three-Phase Model of the Elastic and Shrinkage Properties of Mortar. Journal of Advanced Cement-Based Materials. 1996; 4:6-20.

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