Properties of self-compacting mortar made with various types of sand |
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| Affiliation: | 1. Civil Engineering Laboratory, University of Laghouat, Algeria;2. Laboratory L2MGC, University of Cergy Pontoise, France;3. Civil Engineering Laboratory, University of Blida, Algeria;1. Odisee University College, Department of Industrial Sciences & Technology, DUBiT Research Group, Aalst, Belgium;2. Ghent University, Department of Structural Engineering, Magnel Laboratory for Concrete Research, Ghent, Belgium;3. University of Antwerp, Faculty of Applied Engineering, EMIB Research Group, Antwerp, Belgium;4. Haute Ecole Henri Spaak, ISIB, Engineering Education Institute, Physical and Nuclear Department, Brussels, Belgium;1. Structures Division, Department of Civil Engineering, National Institute of Technology, Warangal, India;2. CERis-ICIST, Instituto Superior de Engenharia de Lisboa (ISEL - IPL), R. Conselheiro Emídio Navarro, 1, 1959-001 Lisbon, Portugal;3. CERis-ICIST, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal;1. Department of Civil Engineering, National Institute of Technology, Warangal, India;2. Department of Civil Engineering, JNTU, Hyderabad, India |
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| Abstract: | Higher cement and fines content is needed in self-compacting mortars (SCMs) to increase their flowability and stability. Different inert fillers and supplementary cementitious materials are usually added. The use of sands rich in fines may be a cost effective alternative source of filler. This paper presents the results of an experimental study on the rheological and mechanical properties of self-compacting mortars (SCMs) made with various types of sands: crushed sand (CS), river sand (RS), dune sand (DS) and a mixture of different sands. The mini-slump flow, V-funnel flow time and viscosity measurement tests were used to study the rheological properties. The experimental results indicate that the rheological properties and strength improve with mixtures of crushed and river sands but decrease with mixtures of crushed and dune sands especially for higher dune sand content. Crushed sand with (10–15%) of limestone fines can be used successfully in production of SCM with good rheological and strength properties. However, a reduction in compressive strength with increasing dune sand content (up to 50%) in mortar with binary and ternary sands was observed. |
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