Effects of supplementary cementitious materials on properties of cementitious grouts: A review

Abstract

Generally, grout is a combination of cement, sand, and water (with or without admixtures), which poses low viscosity and high penetrability. Grout is very suitable for anchoring application, jacking of concrete elements, grouting of ducts in prestressing application, application in narrow joints and many more. Nowadays it is used to provide additional strength to load-bearing structures. The grout characteristics includes the flow capacity in narrow space and physicalchemical compatibility with the substrate materials. However, shrinkage, stability, leaching of the grouts, etc. are the main problems of cement grouting. Supplementary cementitious materials (SCMs) such as fly ash, ground granulated blast furnace slag (GGBS), silica fume (SF) etc. can be used as admixtures in cement grout to reduce the problems associated with grout. This paper provides a review on the assessment of the flowability, strength, shrinkage and chemical resistance of the cementitious grouts containing SCMs, and its feasibility in grouting applications. This paper reveals that combination with SCMs in the production of cement-based grouts provides advantages in specific uses in concrete industry.

Utilization of Sugar Mill Waste Ash as Pozzolanic Material in Structural Mortar

“…The high burning temperature and incomplete combustion in boilers reduce the reactivity of ash, resulting in a high carbon content and the presence of crystalline silica [15,16]. Due to its inherent properties, such as a high proportion of silica in the form of quartz, which is one of the primary components of natural sand, SCBA has been shown to be useful even in its low-reactivity condition for application in construction [17,18].…”