Work

Evaluation of solid molasses on the physical and mechanical properties of concrete

Year: 2025

Type: article

Abstract: Nepal faces the dual challenge of rapid infrastructure growth and aligning with UN Sustainable Development Goals. Relying on imported chemical admixtures hinders sustainable construction. This study evaluates solid molasses (SM), natural molasses (NM), and a chemical superplasticizer (SP) as admixtures in M20 concrete. SM, a sugar industry by-product, and NM, produced by boiling sugarcane juice, were tested against SP using a control mix (w/c = 0.48; cement:sand:coarse aggregate = 1:1.44:3.02). Admixtures were added in varying dosages by cement weight to assess effects on workability, strength, density, and water absorption. Optimal contents were 0.080 % (SM), 0.075 % (NM), and 0.600 % (SP). SM delivered superior performance across all properties, indicating it as the most effective and sustainable admixture. Its use can enhance concrete quality, reduce reliance on imports, and promote waste valorization, making it a viable solution for sustainable infrastructure in Nepal and similar developing nations.

Source: Ain Shams Engineering Journal

DOI: 10.1016/j.asej.2025.103860

Authors: Avishek Adhikari, Mohan Dhakal, Manoj Paudel, Rabindra Paudel, Santosh G. Chhetri, Tek Raj Gyawali

Institutions: Pokhara University, Tribhuvan University, Institute of Engineering

Language: English

Topic: Concrete and Cement Materials Research

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Industry, innovation and infrastructure, Sustainable cities and communities

Open Access status: gold

Estimated APC paid: $1,200