This article touches upon the issue of environmental safety of technological processes of renovation work in building and construction. The process of buildings dismantling and waste demolishing is characterized by various types of work associated with mechanical effects on building structures and materials, as well as the interaction of materials leading to the formation of such waste. The article analyzes the factors that have a negative impact on the environment and the health of workers in during the course of renovation work. The priority directions for the greening of production and staff health are named. The main environmental measures necessary for the production of construction works are highlighted. The tasks for the improvement of environmental impact on environmental protection during renovation works are listed. The scheme of mobile dust exhausting plant is presented.

The paper describes the environmental problems arising during restoration works in construction. The paper concludes and proves that problem of dust pollution of the environment, as well as the effects of dust emissions on workers during restoration works related to dismantling of destroyed and damaged buildings is relevant.

This article studies the questions of reducing the consumption of diesel fuel via the gas and diesel operating process in small-sized internal combustions engines as well as lowering the amount of noxious substances in exhaust gases. Internal combustion engines (ICE) are the main consumers of petroleum product fuels, the reserves of which are significantly limited in some regions of the world. One of the most promising ways of decreasing the consumption of diesel fuel, diminishing the harmful emissions while reaching the goal of increasing the engine life and using the gas seems transforming diesel engines into gas ones. The most popular method of modifying the diesel engine is the introduction of the gas and diesel operating process, i.e. replacing some part of liquid fuel with gas, most often compressed natural gas. The injection of fuel into the cylinder has been modelled. This simulation has been run with the help of a specially made experimental facility which is based on the diesel 2CH,5/11.

The paper is devoted to the choice of the best construction technology for further introduction into the corresponding branch of industry in the Chechen Republic. The main purpose of the study is to give an overview of the main modern construction technologies. Key parameters for each innovation are determined. The design analysis of each of these technologies is made on the basis of these parameters via the method of analytical hierarchy for subsequent use of the above technologies in housing and utilities sector of the Chechen Republic. General conclusions on the choice of construction innovations are made on the basis of the obtained results. The most critical technologies in terms of their further introduction into construction branch of the Chechen Republic are defined.