Identifying the structure of a plaster mortar mixtures on the basis of NMR investigations

Abstract

Starting from the concept of sustainable development, the research program aims to establish a waste management by reducing the construction materials used in the preparation of plaster mortars. Thus, the chosen material, respectively the used paint plays an important role in replacing the main components of the plaster mortar recipe. Following the research in the laboratory of the Faculty of Construction, it was concluded that used paint can replace water or cement in the recipe in different percentages, a fact recorded in an article published in early 2022 [1]. In the future, this research can help reduce the raw materials used to make plaster mortars, an ambitious plan and a step towards the transition to the circular economy. By reducing the amount of raw materials by recycling used paint, we protect the environment. During the investigations, the 3 mortar recipes: CSIV, CSIV10C, CSIV20P are presented from the point of view of nuclear magnetic resonance NMR. According to the research program, the tracking of behavior over time was done by analyzing the samples at 3 days, 7 days and 28 days.