Experimental investigation on strength properties of concrete incorporating ground pond ash

Abstract

In the present era, the consumption of electricity has increased rapidly with each passing year, due to the industrialization. Coal is a raw material for the production of electricity in the thermal power stations. Particularly, a large amount of unused ash is dumped in ponds, which are major problem concerning many developing countries. Further, dumping of ash in ponds causes environmental hazards effects such as soil, land and water pollution. Identifying a viable alternative to utilize pond ash becomes a necessity, to avoid these environmental hazards. In this research work, an attempt has been made to partially replace cement by the pond ash as a supplementary cementitious material [SCM] in concrete, which will considerably reduce the hazardous effects of pond ash, to the environment. The pond ash was ground to 45 μm and it was used to replace the cement in concrete by proportions of 5, 10, 15, 20 and 25% by mass. Test on compressive strength, split tensile strength and modulus of rupture were conducted on concrete mixes. The result indicate that the addition of 10% pond ash to concrete significantly increased the strength properties of the concrete at the age of 7, 28, 56 and 90 days.

Strength properties of engineered cementitious composites containing pond ash and steel fiber

“…Cement with high calcium content, along with fly ash and pond ash with low calcium content, and steel fiber are use in this investigation, all sourced from a local supplier. The specific gravity and specific surface area of the Class F pond ash (PA) are 2.17 and 398 m 2 /kg, respectively [17]. Chemical proportions of cement, Class F fly ash (FA) and PA are furnished in Table 1.…”

“…Ash into ponds is a significant issue in many developing nations. Therefore, it becomes crucial to identify an alternative for utilizing pond ash [15][16][17]. Efforts were undertaken made to improve ECC behaviour by adding pond ash.…”

Mechanical performance of ETC RC beam with U-framed AFRP laminates under a static load condition

“…Concrete's coarse aggregate is the most durable and least permeable component. (Shen, Wang, Cheng, Zhang, & Jiang, 2016) Crushed granite coarse aggregate provides greater interlocking and hence helps to obtain higher strength than rounded gravel aggregate in terms of aggregate shape (Yuvaraj & Ramesh, 2021). ETC Concrete can be made with coarse aggregate that meets the standards of IS: 383-1970.…”

Utilizing binary ternary blended metakaolin and ground pond ash for reduced carbon footprint emissions and improved mechanical properties in concrete

“…Nevertheless, to achieve more substantial reductions in the carbon footprint of concrete, a greater emphasis should be placed on replacing cement, which stands out as the component with the highest carbon footprint in concrete production [33]. Consequently, the process involves pulverizing PA through the use of a pulverizer machine to yield a finer product, known as finer PA, distinguished by its high silicate and aluminate content [34,35]. As a result, the transformation of coarser PA into finer PA and its subsequent incorporation as a pozzolan is anticipated to lead to an overall reduction in the environmental impact of concrete [36,37].…”