Abstract
In the construction industry, issues such as excessive waste, rising costs, and strained relationships are prevalent. A pressing matter of plunged casting time during mass concreting activities has engulfed numerous construction contracting firms around the world. The increased time of concrete utilization not only risks the commencement of the heat of hydration but also initiates the setting time of concrete. The use of admixtures has often been a boon to curb this situation but human errors are almost impossible to escape from as inappropriate dosage of the admixtures can result in changing the properties of the concrete, affects the quality and pumping ability, which ultimately reducing the speed of casting and elapsed schedules. Other factors on site, though minor, vastly affect the pumping efficiency and causes considerable delays in the casting which not only affects the schedules but also causes time overrun and affects the productivity at site. The focus of this study is to address the issues encountered at the site that directly affect the speed of on-site casting and corrective actions.
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