Apparatus for measuring the properties of heat transfer by conduction in specials concrete

This work reports the design, development and operation of a hot plate device with guard called HD20 Hot Box to evaluate, under steady-state conditions, the transfer of heat by conduction through test tubes with prism-shaped faces. parallel, and indirectly determine the thermal conductivity of construction concretes with different aggregates. For its design, IRAM 11559, IRAM 11549 and IRAM 11601 standards valid in Argentina were applied. The hot box consists of two main units: the heating unit and the cooling unit. The thermal conductivity values obtained with this apparatus agree satisfactorily with the values published in the literature.本研究报道了一款带护圈的热板装置的设计、研发与运行方案，该装置命名为HD20热箱（HD20 Hot Box），可在稳态条件下评估热通过带有平行棱柱形端面的试管的传导过程，并间接测定不同骨料建筑混凝土的导热系数。该装置的设计严格遵循阿根廷现行有效的IRAM 11559、IRAM 11549及IRAM 11601标准。该热箱主要包含两大核心单元：加热单元与冷却单元。本装置测得的导热系数数值与文献已发表的相关数据吻合度优异。