Standardization and Quality Assurance of Non-Autoclaved Aerated Concrete

Abstract

Standardization and the Improvement of Non autoclaved Aerated Concrete Quality in Modern Construction: A Review In the introduction, the authors explain that conditions of large-scale production of construction units, coupled with regulatory reforms in the field of building materials, have made great demands on the production of lightweight, cost effective, and energy efficient materials. In long-lasting experience with aerated concrete, this gap of knowledge had been settled but not on the basis of an applied methodology standardised in regard to the use of chemical additives, mainly carboxymethyl cellulose, as well as for their effects on physical-mechanical properties in non autoclaved production systems.

It uses a blended study design, one of experimental and regulatory based. Concrete compositions were made from Portland cement, sand, aluminum powder, and a three-percent aqueous solution of carboxymethyl cellulose. Sample preparation, curing, and testing procedures were performed following related GOST standards to determine their density, compressive strength, contents of moisture as well as structural properties. A comparative study of conventional composition and modified composition mixtures.

The results confirm that carboxymethyl cellulose can be used as an additive to enhance pore uniformity, pore structure strength development characteristics and overall stability of the material. The results verify that, among different additive concentrations, three percent provides the optimal performance, which results in a higher concrete grade, better density control, and higher thermal efficiency without need for autoclaving.

The final results clarify that the controlled application of carboxymethyl cellulose in the production of non-autoclaved aerated concrete delivers both practical and economic advantages. Such results are significant in relation to sustainable construction practices, regulatory compliance, and development of lightweight readily applicable building materials for industrial scale.