Surface Temperature Profile of Cement Mortar with Infiltrated Water

Abstract

Abstract Leakage detection in concrete is one of interesting field materials engineering. The conventional approach such as using ultrasonic device, are only effective to identify the source due to piping burst. However, leakage due to crack and microcrack that presence in the concrete slab is hard to detect, and its effect only can be observed after long period of time. The objective of this paper is to investigate the temperature profile of mortar with infiltrated water. This experimental work is conducted by using a mortar with the size of 200 mm x 200 mm with the thickness of 50mm. The surface temperature was measured at the bottom part of the mortar, at five designated locations. The temperature measurement was recorded using data logger Graphtec GL200, for every 5 minutes, continuously for 6 hours. The results obtained that p-value of the surface temperature of the mortar surface was 0.3 greater than α = 0.05. Therefore, with 95% number of confident, the null hypothesis of the surface temperature was cannot be rejected. So, we confidently believe that there was enough evidence to accept the null hypothesis. Other than that, the correlation coefficient also found all of the correlation, R2 of the samples was positively strong in between ±0.05 to ±1. As a conclusion, the hypothesis of the experiment was accepted because there was no significantly difference between the surface temperature of the mortar.