On the Fresh/Hardened Properties of Cement Composites Incorporating Rubber Particles from Recycled Tires

Table 1

Mixtures of cement composites.

Mixtures	Mix TQ	Mix 10%	Mix 20%	Mix 30%	Mix 40%	Mix 50%	Mix 75%
Sand  mm [kg/m^3]	1635.5	1292	1117	924	761	632	272
Rubber  mm [kg/m^3]	0	70	130	182	233	289	359
CEM 42,5 II-A/LL [kg/m^3]	310	380	380	380	380	380	380
Superfluidizer [%]	0.4	0.4	0.4	0.291	0.416	0.4	0.4
Air entraining admixture [%]	—	0.23	0.13	0.08	0.08	0.048	0.03
Water [kg/m^3]	190	195	185	180	170	160	140
Air content [%]	5.5	10	12	16	19	20	30
Theoretical density [kg/m^3]	2137	1939.5	1815	1669	1545	1463	1154