Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal PRESUNIVE CIVIL ENGINEERING JOURNAL
Matondang, Imanuel
Unknown Affiliation
Arts Civil Engineering, Building, Construction & Architecture Control & Systems Engineering

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
Comparative Study of Molasses and Chemical Retarders on Concrete Compressive Strength and Setting Time Bali, Ika; Matondang, Imanuel
PRESUNIVE CIVIL ENGINEERING JOURNAL Vol 3, No 2 (2025)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/pcej.v3i2.6324

Abstract

Concrete damage is often linked to reduced structural strength due to rapid setting, which complicates compaction and placement. Chemical retarders are commonly used to address this issue but are costly and environmentally unfriendly. Molasses, a by-product of the sugar industry containing sucrose, glucose, and fructose, offers a potentially eco-friendly and economical alternative. This study compares the effects of molasses and a chemical retarder (Plastiment VZ) at dosages of 0.2–0.4% on concrete compressive strength and initial setting time. Results show that 0.35% molasses increased compressive strength to 25.48 MPa compared to 19.53 MPa in normal concrete, though strength declined at 0.4%. Plastiment VZ showed more consistent gains, reaching 25.90 MPa at 0.4%. For setting time, molasses delayed hydration to 435 minutes (0.4%), while Plastiment VZ extended it further to 690 minutes (0.4%). Thus, molasses can serve as an alternative retarder, though Plastiment VZ provides more stable effects.
Co-Authors Bali, Ika