@article{Prinya Chindaprasirt_Pornnapa Kasemsiri_Sompron Leekongbub_Patcharapol Posi_2020, title={DURABILITY OF CONCRETE CONTAINING RECYCLED ASPHALTIC CONCRETE AGGREGATE AND HIGH CALCIUM FLY ASH}, volume={19}, url={https://geomatejournal.com/geomate/article/view/1771}, abstractNote={<p>In this research, the durability of concrete containing Recycled Asphaltic Concrete (RAC) <br>aggregate and fly ash were studied. The concrete was made from Ordinary Portland Cement (OPC), fly ash, <br>water, sand and combination of natural limestone and RAC aggregates. The RAC aggregate was obtained from <br>the discarded asphaltic pavement. The RAC aggregate was used to replace natural limestone aggregate at the <br>replacement levels of 0, 10, 20, and 30 % of the total weight of aggregate. In addition, the high calcium fly ash <br>from Mae Moh power station in the north of Thailand was used to partially replace OPC at the dosages of 0, <br>20, and 40 % by mass. The compressive strength, water absorption, porosity, flexural strength, modulus of <br>elasticity and resistance to sulfuric acid were tested. The results showed that concretes with 28-day compressive <br>strengths between 22.5 and 33.0 MPa, water absorption between 5.3-5.9 %, porosity between 12.2 and 13.5 %, <br>flexural strength between 4.4 and 5.5 MPa, modulus of elasticity between 25.6 and 30.0 GPa were obtained. <br>The replacement levels of RAC at 10 % and fly ash at 20 % gave the optimum compressive strength and <br>mechanical properties of concrete for use as pavement concrete. In addition, the using of RAC aggregate <br>together with fly ash in concrete work improved water absorption, porosity and sulfuric acid resistance and the <br>use of RAC and high calcium fly ash will also increase the sustainability of the construction industry.</p>}, number={74}, journal={GEOMATE Journal}, author={Prinya Chindaprasirt and Pornnapa Kasemsiri and Sompron Leekongbub and Patcharapol Posi}, year={2020}, month={Oct.}, pages={8–14} }