5. Suggestions
The value of coefficient of thermal conductivity in this testing is higher than those from expectation since the size of this testing (at MTEC: 5x5x1 cm
3
) is much smaller than those presented in previous papers (at department of science service: 30x30x2.5 cm
3
) [33-34]. The smaller size of specimens may beobtained the effect from irregular setting of concentrated latex in mortars but the larger size of the samples is affected insignificantly. Thus for further study, the specimens should be tested from both MTEC and department of science service. In this research, the water-cement ratio is not constant due to water content containing in latex. Thus for further study, the design formula should be calculated by mean of comparing with 100 parts of rubber content (phr) for keeping water-cement ratio as a constant.
Finally, the latex-cement ratios within the range of 0.000-0.025 should be studied since there is high uncertainty in this region.