The static modulus of elasticity for RLAC is shown

Fig. 4. Splitting tensile strength of RLAC versus replacement level of rubber particles.Figure optionsDownload full-size imageDownload as PowerPoint slide
3.4. Flexural strength
The flexural strength of RLAC Tubastatin A presented in Fig. 5. The flexural strength values between 4.68 and 0.87 MPa at 28 days, 3.35 and 0.77 MPa at 7 days, 1.32 and 0.35 MPa at 1 day were achieved, in which the control concrete had the highest strength value. Addition of rubber particles into lightweight aggregate concrete adversely affected the flexural strength as in conventional concrete, so that there was a systematic decrease with increasing the rubber particles content. This trend of strength with respect to substituent ratio was in close agreement with published trend from Ganjian et al. [30], who claimed that the reduction of strength was due to the lack of good bonding between rubber particles and cement paste.
Fig. 5. Flexural strength of RLAC versus replacement level of rubber particles.Figure optionsDownload full-size imageDownload as PowerPoint slide