A method is proposed for producing composite solutions using ash as a production waste, as a structuring additive to composite solutions. The chemical and mineral composition of ash is determined. Structuring in composite solutions was studied when cement was replaced by different amounts of ash. It is established that the possibility of a 20% replacement of cement with ash without loss of the technological parameters of the system. The environmental safety of the composite solution using ash modifier has been proved by determining phytotoxicity on seedlings of radish seed Raphanus sativus.

A method for producing composite solutions using ash from the burning of fuel oil as a waste product is presented. The chemical and mineral composition of the ash is determined. The structure formation in composite solutions was studied when replacing cement with various amounts of ash. The possibility of a 40 % replacement of cement with ash without loss of technological parameters of the system has been established. The environmental safety of the composite solution using the ash modifier has been proved by determining phytotoxicity on seedlings of Raphanus sativus radish seeds.

The textbook provides basic information about general and applied ecology and their importance in the field of environmental safety of building materials. Various aspects of environmental protection of the internal environment of buildings and the choice of environmentally friendly materials for the construction of comfortable housing are considered. Meets the requirements of the federal state educational standards of higher education of the latest generation. It is intended for students of higher educational institutions studying in the direction of training 08.04.01 "Construction" (specialty "Industrial and civil construction"). It can be recommended to specialists working in the field of environmental protection, environmental monitoring, as well as construction engineers.

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