HEAT TRANSMISSION THROUGH WALLS OF COMPOSITE MATERIAL WITH CLAY MATRIX

Author:

SURDU Elena1,FARCAȘ-FLAMAROPOL Dana-Claudia1,IATAN Radu I.1,CÂRDEI Petru2,SPOREA Nicoleta1,TOMESCU Gheorghița1,DURBACĂ Ion1

Affiliation:

1. U.N.S.T “POLITEHNICA” of Bucharest, no. 313, Splaiul Independentei, sector 6, Bucharest, 060042, Romania

2. INMA Bucharest, Bd. Ion Ionescu de la Brad, No.6, Romania, 013813

Abstract

The article presents results obtained for the thermal characterization of composite materials with clay matrix and inserts from agricultural waste (MCMLIDA). The experiments carried out led to the estimation of the coefficient of thermal conductivity of the bricks made from the MCMLIDA composite material. MCMLIDA composite materials have physical properties dependent on the parameters of the manufacturing process, one of the most important being the concentration of the insert. MCMLIDA materials were tested for eleven insert concentrations and four types of inserts (maize cobs, walnut husks, wheat straw, wool). Only the materials with the first two types of inserts had the necessary cohesion for the experiments over the entire range of concentrations (0-50%). It was found that the values of the conductivity coefficient of those materials were between 0.4 and 0.8 W/(mK), values that placed them in the area of good insulating materials from a thermal point of view. It was also observed that thermal conductivity increased (along with a decrease in insulating capacity) as the amount of insertion in the matrix was increased.

Publisher

INMA Bucharest-Romania

Reference23 articles.

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