Addition of Lime Powder Materials on Compression Strength of Concrete using Coarse Aggregate Ex. Senoni and Fine Aggregate Ex. Muara Badak


Authors : Suratmi; Eswan; Heri Kestiyono

Volume/Issue : Volume 7 - 2022, Issue 5 - May

Google Scholar : https://bit.ly/3IIfn9N

Scribd : https://bit.ly/3aFRsfI

DOI : https://doi.org/10.5281/zenodo.6626255

The research objectives are; (1) to determine the use of lime powder added to the compressive strength of K-225 concrete, and (2) to determine the percentage of lime powder addition to the compressive strength of normal concrete. The research was carried out for 3 months in the laboratory of the Civil Engineering Study Program, University of 17 August 1945, Samarinda. The specimens in the form of cylinders measuring 15 cm x 30 cm were 45 samples, with the following details: (1) 15 pieces of normal concrete with a mixture of 0% limestone powder; (2) 15 pieces of normal concrete with a mixture of 4% limestone powder; and (3) 15 pieces of normal concrete with a mixture of 8% limestone powder. The research activities carried out are as follows: (1) literature study, (2) preparation of materials and tools; (3) testing of materials, namely: specific gravity and absorption of coarse aggregate, specific gravity and absorption of fine aggregate, sieve analysis of fine aggregate and coarse aggregate, silt content of fine aggregate, silt content of coarse aggregate, moisture content of fine aggregate and coarse aggregate, and weight volume of fine aggregate and coarse aggregate. The results showed that: (1) slaked lime powder could be used as an additive for the manufacture of K225 concrete; and (2) the addition of lime powder of 4% and 8% resulted in the compressive strength of K-225 concrete which was 234.735 and 256.997 kg/cm2 and these results met the design quality criteria of K-225 concrete. The higher the percentage of lime powder used, the more the value of the compressive strength of the concrete will increase, making it suitable if applied to rigid pavement road projects.

Keywords : Limestone Powder, Concrete Quality

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