The use of clay brick scrap as a coarse concrete aggregate
Abstract
The use of clay brick scrap as a coarse concrete aggregate
Incoming article date: 29.10.2022To solve environmental problems related to the disposal of broken bricks, the preparation of new places for building residential complexes, as well as the expansion of the resource base for the production of building materials, clay brick scrap after the renovation of buildings is considered as a major substitute for concrete mixtures. The main physical and mechanical properties of concretes were studied. It has been established that concretes obtained on the basis of coarse aggregate from brick scrap have the properties of concretes based on natural aggregates of the M250-350 grade. The use of scrap clay bricks as fillers requires a special technology for preparing the latter in order to reduce its water demand. The conducted studies have shown that it is expedient to design concrete mixtures based on secondary resources based on a complex binder consisting of Portland cement, finely ground clay brick cullet and hyperplasticizer.
Keywords: clay brick scrap, coarse aggregate, renovation, binder, hardening, concrete mix, concrete, strength