| Popis: |
The cost of cement is very crucial for the effective construction of any project. The aim of the paper is to assess the economic operation of cement used for Gautam Buddha Airport Upgrading Component construction projects. The economic operation of cement in terms of their quality, consumption, and cost ensuring the strength requirements by concrete is done. Tests for magnesia oxide, insoluble residue, setting time, and compressive strength were operated. Compressive strength test was conducted on cement mortar cubes (1:3) and on concrete cubes developed by the design mix at the laboratory at 7 and 28 days. On the basis of the design mix, the cost difference among these brands for those sites is evaluated. Purposive sampling technique was applied to conduct the interview of project managers of each site and lab technician of Multi lab. Magnesia oxide, insoluble buildup, setting time, and compressive quality properties were discovered to be distinctive as guaranteed by the producer in their concrete endorsements. Furthermore, the results of the design mix showed that different quantity of cement is required depending upon the brand for M25 concrete. The average mean of compressive strength of concretes casted at the field of Admin Building, International Terminal Building and Crass Fire Rescue Building sites for M25 were 28.952 N/mm2 , 29.032 N/mm2 & 27.924 N/mm2 respectively. Based on quality, content, and rate analysis, 53-grade cement is cost effective. So further grading of Ordinary Portland Cement needs to be specified along with strict inspection of cement for assuring quality. The cement produces must be assured to conform to the stated standard. |
