The participation ratios of cement matrix and latex network in latex cement co-matrix strength

Abstract This investigation aims to determine the participation ratio of cement matrix and latex network in latex cement co-matrix strength. The first stage of this study was carried out to investigate the effect of styrene butadiene rubber (SBR) on cement matrix participation ratio by measuring degree of hydration and compressive strength. The second stage in this study shows an attempt to evaluate the latex participation ratio in mortar and concrete strength with different latex chemical bases. Effect of latex particle size on latex network strength was studied. The test results indicated that the latex participation ratio in co-matrix strength is influenced by type of cement matrix, type of curing, latex type, latex solid/water ratio, strength type and age. For modified concrete, when the SBR solid/water ratio increases the latex participation ratio in flexural and pull out bond strength increases. The latex participation ratio in co-matrix strength decreases as latex particle size increases.

[1]  M. Ismail,et al.  Elastomeric influence of natural rubber latex on cement mortar at high temperatures using thermal degradation analysis , 2011 .

[2]  P. Pilvin,et al.  Mechanical behaviour of polymer modified mortars , 2004 .

[3]  Y. Ohama,et al.  Handbook of Polymer-Modified Concrete and Mortars: Properties and Process Technology , 1995 .

[4]  Peiming Wang,et al.  Influence of polymer on cement hydration in SBR-modified cement pastes , 2006 .

[5]  J. J. Beaudoin,et al.  Polymer Modified Concrete , 1985 .

[6]  C. Poon,et al.  Degree of hydration and gel/space ratio of high-volume fly ash/cement systems , 2000 .

[7]  P. K. Mehta,et al.  Concrete: Microstructure, Properties, and Materials , 2005 .

[8]  S. Staquet,et al.  How to assess the hydration of slag cement concretes , 2013 .

[9]  D. Fowler.  Polymers in concrete: a vision for the 21st century , 1999 .

[10]  J. Schulze.  Influence of water-cement ratio and cement content on the properties of polymer-modified mortars , 1999 .

[11]  R. E. Robertson,et al.  Structure and properties of poly(vinyl alcohol)-modified mortar and concrete , 1999 .

[12]  B. Persson.  Hydration and Strength of High-Performance Concrete. , 1996 .

[13]  A. Loukili,et al.  Hydration kinetics, change of relative humidity, and autogenous shrinkage of ultra-high-strength concrete , 1999 .

[14]  F. Cohen Tenoudji,et al.  Mechanical properties of cement pastes and mortars at early ages: Evolution with time and degree of hydration , 1996 .

[15]  Handbook Of Polymer-modified Concrete And Mortars , 2015 .

[16]  P. Termkhajornkit,et al.  Modeling the coupled effects of temperature and fineness of Portland cement on the hydration kinetics in cement paste , 2012 .

[17]  J. A. Lavelle,et al.  Acrylic Latex-Modified Portland Cement , 1988 .

[18]  Xianming Shi,et al.  Effect of styrene–butadiene rubber latex on the chloride permeability and microstructure of Portland cement mortar , 2009 .

[19]  Paulo J.M. Monteiro,et al.  The influence of polymers on the hydration of portland cement phases analyzed by soft x-ray transmission microscopy , 2006 .

[20]  A. P. Gupta,et al.  Physicochemical studies on single and combined effects of latex and superplasticiser on portland cement mortar , 1996 .