SU1226178A1 - Arrangement for water saturation of porous materials - Google Patents

Abstract

A device for water saturation of porous materials is intended for. use in industrial construction of materials in the study of their water absorption, cold resistance and weather resistance. The purpose of the invention is to reduce energy consumption by eliminating the need to heat the sample and expanding the field of application by allowing the study of thermally unstable materials. The device comprises a sealed hermetic chamber connected by two pipelines with an open container located above the chamber. In this case, one pipeline is located in the heater, and the other in the refrigerator. The chamber, the piping and the open container form a closed circulation system. 1 il. (L

Description

The invention relates to the field of construction and industrial building materials and can be used for water saturation of porous materials when conducting research at the Institute for Water Absorption, Cold Resistance, and Weatherability.

The purpose of the invention is to reduce energy consumption by eliminating the non-availability of heating the sample and expanding the field of application by making it possible to study thermally unstable materials.

The drawing shows a diagram of the proposed device.

A device for the water saturation of porous materials consists of. sealed chamber 1, in which samples 2 and water 3 are located. Chamber 1 is connected via ducts 4 and 5 with ducts. An open container 6 located above the chamber 1. One of the pipes 4 is located in the heater 7, and the other pipe 5 is in the refrigerator 8. The device also contains valves 9 and thermal sensors 10 for adjusting and controlling the speed of water circulation in the closed circuit formed by chamber 1, pipelines 4 and 5 and open tank

The device works as follows.

The technological process is carried out as follows. Samples 2 of a porous material are placed in a sealed chamber 1 and water 3 of a certain temperature is poured in accordance with the test conditions. With the valves 9 open, the pipes 4 and 5 and the container 6 are opened are filled with water. In heater 7, water 3 is heated. Due to the difference in density between heated water and ordinary (unheated) water, it begins to circulate in a closed loop formed by a system of pipelines 4 and 5 passing through

cutting heater 7 and cooler-8, open tank 6 and hermetic chamber 1. Water circulation rate and its temperature condition are regulated by valves 9 and controlled by temperature sensors 10. As a result of heating, the solubility of air in water decreases, and in an open container 6 into the atmosphere. The dehydrated water in the refrigerator 8 is cooled to operating temperature. Water cooled without air access has the potential to dissolve the air. Entering the hermetic chamber 1 and washing the samples 2, the highly crystallized water, being in contact with the gas phase filling the pores of the material, dissolves it. As long as the air in contact with the water, the filling material and the capillaries of the material are in the pores of the sample, the concentration of dissolved air in the water inside the sample is higher than that in the circulating water and the air is removed from the porous material due to diffusion through the solution. , which leads to full saturation of the test material.

Claims (1)

Invention Formula A device for water saturation of porous materials, containing a sample chamber and heater, in order to reduce energy costs and expand the application by eliminating the need to heat the sample, the chamber is sealed and connected by two piping with an open container located above the chamber , one of the pipelines is located in the heater, and the other is in the refrigerator, where the chamber, the pipes and the container open form a closed circulation system.