Cement, specific heat capacity

Problem. In an adiabatic calorimeter the temperatnre 0c in a sample of hardening concrete is measrued. The cement content C of the concrete is 350 kg/m. The concrete density q is 2350 kg/m and the mass-specific heat capacity Cp of the concrete is calculated as 1.10 kJ/kgK. The measurement shows the following relation between hardening time t and the adiabatic concrete temperatnre 0c... 

In the table m, 0 and c denote the mass, temperatme and mass-specific heat capacity, respectively, of the constituent materials. With the given subscripts, the mass of sand is denoted m, temperatme of cement is denoted Oc, etc. 

The heat development of a concrete is investigated by measurement in an adiabatic calorimeter. The cement content of the tested concrete is C = 310kg/m and the concrete density is = 2320kg/m. A concrete specimen with the mass m = 12.5 kg is used, and the specific heat capacity of the concrete is Cp = 1.12 kJ/kg K. Bcised on this, determine 1) the heat capacity C of the specimen in (kJ/K) 2) the heat (kJ)... 

A structural concrete with density g = 2350 kg/m has a cement content of 410 kg/m . At full hydration the heat developed by the cement is Q = 405 kJ/kg. The specific heat capacity of the concrete is c = 1.10 kJ/kgK. Calculate the maximum adiabatic increase of temperature AT that can arise in the concrete concerned ... 

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