Experimental and numerical investigation on post-fire seismic performance of light weight aggregate reinforced concrete beams

Predicting stress-strain behavior of normal weight and lightweight aggregate concrete exposed to high temperature using LSTM recurrent neural network

“…To enable evaluation of the performance of LWAC, its stress-strain curve, including modulus of elasticity, peak or failure strain, ultimate strain, energy absorption capacity and toughness, should be evaluated. Recent research shows that it is possible to predict the stressstrain relation of different LWAC mixtures through theoretical calculations [11][12][13]. A study has also shown that concrete containing fine light expanded clay aggregate (LECA) could achieve a 28-day compressive strength of 41 to 45 MPa [14].…”

“…Figure13 Strain at peak stress and maximum strain retention percentage of specimens for all the mixture series at the different exposure temperatures studied…”

The Fire Effect on the Performance of Reinforced Concrete Beams with Partial Replacement of Coarse Aggregates by Expanded Clay Aggregates

“…They found that LWAC performed better than NWA concrete up to 500 °C but lost more strength at higher temperatures. Authors in [11][12][13][14] found that concrete with LECA has a lower density, better thermal resistance, and slower decline in mechanical properties under high temperatures, making it suitable for fire-resistant structures.…”