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Journal : Journal of Applied Civil Engineering and Infrastructure Technology (JACEIT)

Study of the Effect of Different Concrete Treatment Methods on Concrete Compressive Strength Irawan Irawan saputra; Mirza Ghulam Rifqi; M. Shofi’ul Amin
Journal of Applied Civil Engineering and Infrastructure Technology Vol 1 No 1 (2020): Agustus 2020
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v1i1.22

Abstract

The process of bonding cement with water in the manufacture of concrete will cause side effects of rising temperature in concrete commonly called the hydration process. Heat hydration is too high can result in cracks in the concrete, therefore the need to do concrete maintenance work that serves to maintain the stability and availability of water in the concrete during the hydration process. The study uses cylinder-shaped test objects with a diameter of 15 cm and a height of 30 cm. There are 36 test objects and three types of treatments to be used in the study, i.e. soaking treatment, treatment wrapped with a plastic sheet, and curing compound treatment. Strong press testing is done at the age of 7, 14, and 28 days. Results of the study showed strong press pressing age 7 days concrete type with soaking treatment, treatment wrapped with a plastic sheet, and a consecutive curing compound treatment 0.38 MPa, 1.68 MPa and 2.29 MPa. Strong Test press Age 14 days concrete type with soaking treatment, treatment wrapped with a plastic sheet, and curing compound treatment consecutive 21.97 MPa, 21.59 MPa, 20.29 MPa. Strong Test Press Age 28-day type of concrete with soaking treatment, treatment wrapped with a plastic sheet, and the curing of the successive compound maintenance 25.89 MPa, 23.78 MPa, and 22.48 MPa.
Pengaruh Variasi Suhu Air 27ºC, 37ºC, 47ºC Pada Campuran Beton Terhadap Nilai Kuat Tekan Beton Struktural Fatma Rosita Hardiani; Mirza Ghulam Rifqi; Mohamad Galuh Khomari
Journal of Applied Civil Engineering and Infrastructure Technology Vol 1 No 2 (2020): Desember 2020
Publisher : Indonesian Society of Applied Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52158/jaceit.v1i2.64

Abstract

The purpose of this research was to determine the effect of water temperature on the concrete mixture using water with a temperature of 27ºC, 37ºC, 47ºC in the concrete mixture to value structural concrete compressive strength. This research uses cylindrical specimens with a size of 150 mm diameter and 300 mm in height. The study involved testing compressive strength at the age of 3 days, 7 days, 14 days, and 28 days. Based on the test results, the compressive strength values obtained at 3 days of age with a water temperature of 27ºC to 14.132 MPa, 37ºC to 19.496 MPa, 47ºC to 21.554 MPa. The results of testing at the age of 7 days obtained compressive strength with a water temperature of 27ºC to 19.817 MPa, at 37ºC to 22.471 MPa, at 47ºC to 25.822 MPa. The results of testing at the age of 14 days with a water temperature of 27ºC to 27.090 MPa, at 37ºC to 28.556 MPa, at 47ºC to 28.973 MPa. The results of the test at 28 days the compressive strength of concrete with a water temperature of 27ºC to 30.246, 37ºC to 31.250 MPa, 47ºC to 32.149 MPa. The normal water temperature of 27ºC is used as a reference to see the effect on the value of concrete compressive strength. Based on this study, the use of water in concrete mixtures with temperatures of 37ºC and 45ºC affects the compressive strength of concrete.