A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Properties of Concretes with Natural and Recycled Coarse Aggregates
This research studied effects of moisture and absorption of natural and recycled coarse aggregates on properties of concretes. The effects of two moisture states, air-dried state (AD) and saturated surface dry state (SSD), of both aggregates were investigated. Recycled coarse aggregate was used to replace crushed limestone at 25 and 100 percent by volume. The compressive strength, ultrasonic pulse velocity (UPV), and modulus of elasticity of concretes were determined. The results revealed that the coarse aggregates in SSD state gave higher compressive strength than those in AD state. The moisture states of aggregate did not affect the UPV of concrete but the replacement of crushed limestone by recycled aggregate reduced the UPV. The cracks on cement paste of the recycled coarse aggregate increases the distance for wave travel passing through concrete. The modulus of elasticity of concrete is independent of the moisture states of recycled coarse aggregate but dependent on the strength of concrete.
Properties of Concretes with Natural and Recycled Coarse Aggregates
This research studied effects of moisture and absorption of natural and recycled coarse aggregates on properties of concretes. The effects of two moisture states, air-dried state (AD) and saturated surface dry state (SSD), of both aggregates were investigated. Recycled coarse aggregate was used to replace crushed limestone at 25 and 100 percent by volume. The compressive strength, ultrasonic pulse velocity (UPV), and modulus of elasticity of concretes were determined. The results revealed that the coarse aggregates in SSD state gave higher compressive strength than those in AD state. The moisture states of aggregate did not affect the UPV of concrete but the replacement of crushed limestone by recycled aggregate reduced the UPV. The cracks on cement paste of the recycled coarse aggregate increases the distance for wave travel passing through concrete. The modulus of elasticity of concrete is independent of the moisture states of recycled coarse aggregate but dependent on the strength of concrete.
Properties of Concretes with Natural and Recycled Coarse Aggregates
Somna, Rattapon (author) / Martnok, Apiruk (author) / Horpibulsuk, Suksun (author)
2016-12-31
Mahasarakham International Journal of Engineering Technology; Vol 2 No 2 (2016): July - December; 20-24 ; 2408-1566 ; 2408-1957
Article (Journal)
Electronic Resource
English
DDC:
690
Effect of nano silica on properties of concretes containing recycled coarse aggregates
| Online Contents | 2014