International Scholarly Research Notices / 2014 / Article / Tab 1

Review Article

Properties of Concrete at Elevated Temperatures

Table 1

Constitutive relationships of high-temperature properties of concrete.

NSC—ASCE Manual 1992 HSC—Kodur et al. 2004 [10]NSC and HSC—EN1992-1-2: 2004 [4]

Stress-strain relationships

.


, 
.
.
For , the Eurocode permits the use of linear as well as nonlinear descending branch in the numerical analysis.
For the parameters in this equation refer to Table 2.

Thermal capacity Siliceous aggregate concrete 

Carbonate aggregate concrete
Siliceous aggregate concrete 

Carbonate aggregate concrete
Specific heat (J/kg C) 
, for 20°C ≤ °C, 
,  for 100°C < ≤ 200°C,
, for 200°C < °C, 
, for 400°C < ≤ 1200°C.
Density change (kg/m3) 
= Reference density
for 20°C ≤ ≤ 115°C,

for 115°C < ≤ 200°C, 

for 200°C < ≤ 400°C, 

for 400°C < ≤ 1200°C,
Thermal capacity = .

Thermal conductivitySiliceous aggregate concrete 

Carbonate aggregate concrete 
Siliceous aggregate concrete 
.
Carbonate aggregate concrete 
All types:
Upper limit: ,
for 20°C ≤ ≤ 1200°C.
Lower limit: 
,
for 20°C ≤ ≤ 1200°C.

Thermal strainAll types: 
.
All types:  
.
Siliceous aggregates: 
, for 20°C ≤ ≤ 700°C.
, for 700°C < ≤ 1200°C,
Calcareous aggregates: 
, for 20°C ≤ ≤ 805°C.
, for 805°C < ≤ 1200°C.

We are committed to sharing findings related to COVID-19 as quickly as possible. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID-19. Review articles are excluded from this waiver policy. Sign up here as a reviewer to help fast-track new submissions.