Evaluation of Thermal Effects on Slag Cement Concrete’s Strength Properties

Abstract

The physical, chemical, and mechanical characteristics of concrete change with heat-fire. The effect of thermal load on Slag cement concrete output must be measured because of the crucial role of thermal resistance in concrete structure performance and operation. This work examines the thermal resistance of Slag cement concrete. The concrete cubes were produced and cured for 28 days and then subjected to varying temperatures range of 100°C, 150°C, 200°C, 250°C, and 300°C. Hardness and compressive strength were measured at 30, 45, and 60 minutes; the sample results were compared to those of ordinary Portland cement used for the study. The findings of this experiment demonstrate that strength loss was 0.45% at 100 °C, 1.75% at 150 °C, 2.67% at 200°C, 5.98% at 250°C and 12.04 % at 300 °C, the hardness property increased from 100° to 150°C but decreased with higher temperatures. However, average concrete loss at 300 °C exceeds 20 percent of its compressive strength. This means that higher temperatures have adverse effects on concrete strength. From the test, however, it has been noted that there was an insignificant loss of strength of concrete at temperatures below 250°C and however, above 250 °C, a significant loss of concrete strength was observed. The results indicate that slag concrete has a significantly higher thermal resistance potential than traditional concrete and can be used even in industrial applications.

Effect of Thermal Variances on Flexible Pavements

“…The sun's radiation may also raise the road surface temperatures and the temperature but will have an even more significant effect on the asphalt pavement temperature. A numerical method based on finite-difference modeling is proposed by [30], which evaluates temperature distribution in pavements depending on changes in the thermal environment. The model anticipates temperature variations in rates and depth during freezing and thawing cycles.…”

Effect of Construction Wastes as Coarse Aggregates in Cement Concrete: A Review

“…These are examples of non-ferrous materials. The bulk of these materials is recyclable in some form or another [58]; [55].…”

“…Although recycling is widely accepted as the most effective strategy for achieving long-term sustainability, real-world implementation has proven to be challenging [21]. [55] suggested that recycling waste is more practical than reducing and reusing waste.…”

“…From a technological and management standpoint, closed-cycle construction is planned to make CDW recycling a reality [55]; [21].…”

“…Recycled materials from CDW may be used to manufacture high-quality and inexpensive bricks with outstanding water absorption and density attributes. Scholars have conducted numerous studies from a management viewpoint to encourage the growth of the CDW recycling business, which is guaranteed by the technological feasibility of recycling these wastes [55].…”