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Journal : PARADIGM : JOURNAL OF MULTIDISCIPLINARY RESEARCH AND INNOVATION

PENGARUH PENAMBAHAN DOSIS CEMENT GRINDING AID (CGA) TERHADAP SETTING TIME DAN KUAT TEKAN MORTAR PADA SEMEN PCC DI PT. SEMEN BATURAJA TBK Sunarsih, Tri; Marzuki, Hasan; Anaser, Novadri; Safaruddin, Safaruddin
PARADIGM : Journal Of Multidisciplinary Research and Innovation Vol 2 No 02 (2024): PARADIGM : Journal Of Multidisciplinary Research and Innovation
Publisher : Pusat Studi Ekonomi Publikasi Ilmiah dan Pengembangan SDM Azramedia indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/paradigm.v2i02.1192

Abstract

Cement Grinding Aid (CGA) appears as an addition that has the potential to affect the characteristics of the mortar in PCC cement. The purpose of this study is to optimize the formulation of PCC cement from CGA-MBS and CGA-MAPEI types against the Setting Time and mortar compressive strength. In this study, a physical test method was used, namely the setting time and mortar compressive strength test. From the results of the study, the setting time test is faster for the CGA-MAPEI type because it increases the smoothness of the cement, while the CGA-MBS type has a chemical composition content that more affects its properties as a more stable and resistant adhesive. In the mortar compressive strength test, the addition of a dose of CGA (100 – 400) ppm the compressive strength value of CGA-MAPEI mortar is higher than that of GCA-MBS, but in the addition of a dose of 500 ppm, the compressive strength value of CGA-MAPEI is still below the compressive strength value of CGA-MBS.
PENGARUH SUHU DAN KELEMBAPAN TERHADAP NILAI SETTING TIME PADA SEMEN PCC (PORTLAND COMPOSITE CEMENT) DAN OPC (ORDINARY PORTLAND CEMENT) Azra Nazirah Nafiah; Legasari, Leni; Anaser, Novadri; Safaruddin, Safaruddin
PARADIGM : Journal Of Multidisciplinary Research and Innovation Vol 3 No 01 (2025): PARADIGM : Journal Of Multidisciplinary Research and Innovation
Publisher : Pusat Studi Ekonomi Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/paradigm.v3i1.1403

Abstract

Temperature and humidity are important factors in the drying and hardening process of semen. The temperature in the hardening process ranges from 10°C to 35°C with a relative humidity of 40% to 60%. This research aims to analyze the effect of temperature and humidity on the initial and final setting time values ??of OPC and PCC cement in five different environmental conditions. The research results show that the higher the humidity level, the longer it takes for cement to harden, both for PCC and OPC. Conversely, the lower the humidity, the faster the setting time occurs. In increasing the initial setting time, PCC cement showed an increase of 38.5%, while OPC cement was 37.5%. For the final setting time, cement OPC experienced a more significant increase of 41.65%, compared to PCC which was only 25%. This shows that OPC cement has a faster final setting time and is relatively less influenced by temperature and humidity than PCC. This study concluded that temperature and humidity significantly influence the setting time of cement, with different effects varying between OPC and PCC cements.
PENGARUH PENAMBAHAN DOSIS CEMENT GRINDING AID (CGA) TERHADAP SETTING TIME DAN KUAT TEKAN MORTAR PADA SEMEN PCC DI PT. SEMEN BATURAJA TBK Sunarsih, Tri; Marzuki, Hasan; Anaser, Novadri; Safaruddin, Safaruddin
PARADIGM : Journal Of Multidisciplinary Research and Innovation Vol 2 No 02 (2024): PARADIGM : Journal Of Multidisciplinary Research and Innovation
Publisher : Pusat Studi Ekonomi Publikasi Ilmiah dan Pengembangan SDM

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62668/paradigm.v2i02.1192

Abstract

Cement Grinding Aid (CGA) appears as an addition that has the potential to affect the characteristics of the mortar in PCC cement. The purpose of this study is to optimize the formulation of PCC cement from CGA-MBS and CGA-MAPEI types against the Setting Time and mortar compressive strength. In this study, a physical test method was used, namely the setting time and mortar compressive strength test. From the results of the study, the setting time test is faster for the CGA-MAPEI type because it increases the smoothness of the cement, while the CGA-MBS type has a chemical composition content that more affects its properties as a more stable and resistant adhesive. In the mortar compressive strength test, the addition of a dose of CGA (100 – 400) ppm the compressive strength value of CGA-MAPEI mortar is higher than that of GCA-MBS, but in the addition of a dose of 500 ppm, the compressive strength value of CGA-MAPEI is still below the compressive strength value of CGA-MBS.