Efficiency of the Alkali-Activated Cement Concretes for Sea Construction

Abstract

There are shown studies on development of the alkali-activated slag cements and concretes using Chinese raw materials. Such cements and concretes are able to provide high performance characteristics of materials and constructions under exposure of sea climate. The tests had been done for compliance with the requirements set in the national standards of P.R.China and were determined characteristics of strength, wet conditions shrinkage, freeze-thaw resistance, corrosion and weather resistance, biodegradability, water permeability, bond strength between concrete and reinforcement. The obtained positive results of tests allowed to recommend them for a pilot-scale production of the developed materials in sea construction for protection of the sea coastal line in the P.R.China.

Concrete Based on Clinker-Free Cement: Selecting the Functional Unit for Environmental Assessment

“…At present, the study of clinker-free cements is aimed at the theoretical and practical justification of obtaining new compositions, based on multicomponent mineral raw materials of secondary resources for durable cement matrices, at the expense of increasing the reactivity of binders, reducing their water demand, directing regulation of the processes of phase and structure formation, and their correlation with the processes that determine the internal corrosion of the matrix [26][27][28][29][30][31]. This leads to increasing the physical and mechanical properties that determine the matrix durability [32][33][34].…”