Scientists of the Crimean Federal University named after. V.I. Vernadsky are developing an innovative technology for the production of building wall products from by-products and industrial waste — phosphogypsum and waste from the processing of diabase rocks. The project is aimed at reducing the environmental load on the environment and reducing carbon dioxide emissions.
These building wall products are hollow blocks for the construction of external and internal walls of buildings.
The technology being developed consists of molding wall blocks using vibrocompression and then sending the blocks into a carbonization chamber filled with carbon dioxide, where they harden for some time. The raw mix for blocks contains calcium minerals that can bind carbon dioxide and harden as a result of this reaction. The binder mixture consists of phosphogypsum and hydrated lime. The main advantages of the technology are the low cost of raw materials and the reduction of environmental burden on the environment, since production waste is used, which is fully consistent with the “Development Program of the Republic of Crimea until 2036” in the sections “Environmental Well-Being” and “Technological Leadership”— noted the project manager, associate professor of the department of construction engineering and materials science of the Academy of Construction and Architecture of KFU. V. I. Vernadsky Tamara Bakhtina.
The project solves several problems at once, including the disposal of phosphogypsum accumulated in dumps, reducing the carbon footprint and creating an affordable building material. In 2026, specialists plan to produce a pilot batch of wall blocks and build a small structure from them to monitor the release of harmful substances into the environment by the walls of the structure.
At the moment, in order to test the parameters for producing blocks in a factory environment, work is underway in the laboratory of the Academy of Construction and Architecture to produce prototype cylinders. Using mathematical planning of the experiment, a number of factors are varied: vibration compaction pressure, binder-aggregate ratio, water content of the raw mixture, carbonization time. The compressive strength of the samples ranged from 4 to 10 MPa, which meets the GOST requirements for wall blocks. After establishing the optimal parameters for obtaining samples with the best physical and mechanical characteristics, a pilot batch of blocks will be produced in the factoryadded Tamara Bakhtina.
According to the specialist, in the future, using this technology it will be possible to produce blocks of both standard and specific sizes to order.
source: KFU press service
Message KFU develops building blocks from by-products and industrial waste appeared first on Crimea news | CrimeaPRESS: latest news and main events.
Comments are closed.