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Comparison of the Use of Cement, Gypsum, and Limestone on the Improvement of Clay through Unconfined Compression Test Ika Puji Hastuty
Journal of the Civil Engineering Forum Vol. 5 No. 2 (May 2019)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (992.073 KB) | DOI: 10.22146/jcef.43792

Abstract

Soil stabilization is an effort to improve soil properties by adding additives in the soil to increase the soil strength and maintain the shear strength of the soil. There are many materials which can be used as stabilizers. The materials used in this study were cement, gypsum, and limestone, then the compressive strength values were compared by using the Unconfined Compression Test (UCT). The mixture combinations used in this study were 1% to 10% of cement, gypsum, and limestone on clay by curing for 14 days. The compressive strength value resulted from the unconfined compression test on the original soil sample was 1.4 kg/cm2. The original soil was classified as moderately sensitive soil because the sensitivity value of the original soil was 2. After being stabilized with various mixtures of cement, gypsum, and limestone, soil stabilization using cement obtained the maximum unconfined compressive strength value is 3.681 kg/cm2 in the mixture of 10%. Similarly, the soil stabilization using limestone and gypsum also obtained its maximum unconfined compressive strength value in the mixture of 10% is 3.307 kg/cm2 and 2.975 kg/cm2, respectively.
INSTALLATION OF DRILL WELLS TO OBTAIN CLEAN WATER IN THE JARING HALUS VILLAGE SECANGGANG DISTRICT LANGKAT REGENCY Ivan Indrawan; Ika Puji Hastuty; Adina Sari Lubis; Nursyamsi Nursyamsi
Prosiding COSECANT : Community Service and Engagement Seminar Vol 1, No 2 (2021)
Publisher : Universitas telkom

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.434 KB) | DOI: 10.25124/cosecant.v1i2.17529

Abstract

Human daily activities can not be separated from clean water, ranging from bathing, washing, drinking and cooking. Groundwater is one of the sources of water used to obtain clean water. In coastal areas or river estuaries in developing countries, villagers generally have difficulty getting clean water. Jaring Halus Village is located in Secanggang district, Langkat regency, North Sumatra Province. The village is bordered by the ocean and mangrove forests, where transportation access is difficult and limited. This village has received clean water services from the PDAM government, but the water flowing into people's homes has been increasingly choked. Several drill wells have been provided by the government but can only be found at a distance of 100-200 m from the beach. This cause underlies the Community Service Program team choosing a location in The Village of Jaring Halus. This activity aims to obtain clean water. This activity aims to get the clean water needs of residents by making drill wells, providing water storage tanks and installing water faucet installations in designated locations. With this facility, all village communities can accommodate and utilise clean water for daily needs.