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INTRODUCTION. The formulation of existing hardened mortars is often needed for conservation work. Laboratory analysis can provide a detailed description of mortar composition and aggregate gradation to provide appropriate proportions for repointing and rebuilding mortar.
1 cze 2013 · The mixing of solid materials with water is one of the most important steps in the preparation of mortars. The mixing procedure interferes with both fresh and hardened properties. The ABNT NBR...
20 cze 2018 · During the theoretical calculations of the power level consumed by the mortar mixer drive when mixing constructional mortar components, it is proposed to use the movement resistance...
12 sty 2022 · Several research studies are available in the international literature on the study of restoration mortars, and particularly, the relationship between the raw materials selected, the mortar mix design, and the developed mortar characteristics.
6 sie 2020 · This book discusses mortar characterisation, experimentation with and applications of new mortars for conservation of historic buildings. Topics include development of new materials (covering compatibility, durability, mix designs), history of mortar technology and studies of material properties.
chemical analysis on the materials in historic mortars. Acid dissolution/separation of binder from aggregate is the simplest method, and allows the determination of the chemical composition of the acid-soluble binder and, after separation, information on the mortar’s aggregate.
We propose the method of design of mortars on the basis of dry mixes that consists of six stages: Composing the task for design (design assignment) of the mortar on the basis of a dry mix with substantiation of the main specifications: processing, physico-mechanical, and engineering-performance ones.