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All Journal Equivalent: Jurnal Ilmiah Sosial Teknik
Aidulghani, Bachtiar
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Economics, Econometrics & Finance Electrical & Electronics Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Social Sciences

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ANALYSIS OF THE EFFECT OF THE ADDITION OF LATITUDE STONE AS A CEMENT SUBSTITUTION ON THE COMPRESSIVE STRENGTH OF MORTAR Gani, Moh Hari Febriana; Aidulghani, Bachtiar; Pangestu, Agung; Roesdiana, Tira
Equivalent: Jurnal Ilmiah Sosial Teknik Vol. 7 No. 2 (2025): Equivalent: Jurnal Ilmiah Sosial Teknik
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jequi.v7i2.223

Abstract

In this study, the effect of adding latitude stone as a substitute for cement on the compressive strength of mortar in the manufacture of construction materials was analyzed to produce building materials with better quality. One of the ingredients in the manufacture of mortar is cement with the main formers is calcium. The addition of laterstone is an effort to increase the calcium element needed in the pozzolanic reaction when mixed with SIO2 in laterstone. The purpose of this study was to increase the compressive strength of mortar by adding laterstone as a substitute for cement. The research method used is a quantitative experimental method with data collection from laboratory research and using laterstone powder that passes the 200 sieve, in mortar mixes with percentage variations of 0%, 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9% and 10%. The proportion of mortar mixture in this study used a ratio of 1: 3 (Cement: Sand) with a cement water factor (FAS) of 0.5 and was carried out using a compressive strength tool on a 5cm x 5cm x 5cm cube-shaped mortar at a time (age) of 7, 14, 21 and 28 days. Various tests were conducted on the materials and specimens to analyze the compressive strength and mass density of the mortar. The results of this study showed that the mortar achieved the highest compressive strength of 20.33 MPa with 3% laterstone mix variation at the age of 28 days. Mortar with more than 3% laterstone mixture variation will result in a decrease in compressive strength, thus reducing the compressive strength. This can be one solution to reduce the use of cement while reducing the exploitation of limestone mountains in Indonesia.
Mechanical Performance of Mortar with Partial Replacement of Cement by Laterite Stone Powder Gani, Moh Hari Febriana; Aidulghani, Bachtiar; Pangestu, Agung; Roesdiana, Tira
Equivalent: Jurnal Ilmiah Sosial Teknik Vol. 7 No. 2 (2025): Equivalent: Jurnal Ilmiah Sosial Teknik
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jequi.v7i2.223

Abstract

Background: Cement is a key component in mortar production due to its calcium-rich composition, which plays an essential role in pozzolanic reactions. However, the extensive use of cement contributes to high carbon emissions and limestone exploitation. The incorporation of laterite stone powder as a partial cement replacement offers a potential alternative to enhance mortar performance while promoting sustainable construction practices. Aims: This study aims to evaluate the effect of laterite stone powder as a partial substitute for cement on the compressive strength and density of mortar. Methods: A quantitative experimental approach was employed through laboratory testing. Laterite stone powder passing a 200-mesh sieve was used as a partial cement replacement at substitution levels ranging from 0% to 10% by weight of cement. The mortar mixture was prepared with a cement-to-sand ratio of 1:3 and a water–cement ratio of 0.5. Compressive strength and density tests were conducted on 50 mm × 50 mm × 50 mm cube specimens at curing ages of 7, 14, 21, and 28 days. Result: The results showed that the highest compressive strength, reaching 20.33 MPa, was obtained at a 3% laterite stone powder substitution after 28 days of curing. Substitution levels exceeding 3% resulted in a gradual decrease in compressive strength, indicating a reduction in mortar performance at higher replacement ratios. Conclusion: The study concludes that laterite stone powder can be effectively utilized as a partial cement replacement in mortar at an optimum level of 3%. This substitution not only improves compressive strength but also contributes to sustainable construction by reducing cement consumption and minimizing limestone exploitation in Indonesia.
Co-Authors Agung Pangestu Gani, Moh Hari Febriana Tira Roesdiana