In flexural strength the maximum increase was (26.64%) for PH10 mix. In compressive strength the increase was (7.14%-28.79%) for PH10 and PM5 mixes. Results showed an improvement in all properties of polymer modified concrete (PMC) over reference concrete and in particular in low-velocity and high-velocity impact properties. Cubes, prisms and panels were made as follows: Ninety-six (100X100X100 mm) cubes for compressive strength tests, forty-eight (100X100X500 mm) prisms for flexural strength (modulus of rupture), forty-eight (50X50X50 mm) cubes for high temperature tests, thirty-two (500X500X50 mm) panels for low and high velocity impact tests, and eight (95X200X1600 mm) reinforced PMC beams for structural behaviour tests. Two series of polymer modified concrete (PMC) were produced the first level I with moderate compressive strength and the other level II with higher compressive strength. ![]() Abstract This research includes the study of improving mechanical properties, resistance to high temperature, structural behaviour and impact resistance of concrete using styrene butadiene rubber (SBR) with different weight ratios of polymer to cement 3%, 5% and 10%.
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