| Title |
Influence of Stabilizing Agent for Recycling Water on Physical Properties of Concrete |
| Authors |
Han Cheon-Goo ; Lee Sea-Hyun ; Lee Mun-Hwan ; Woo Jong-Wan |
| Keywords |
Stabilizing Agent for Recycling Water ; Concentration of Recycling Water ; Curing Temperature |
| Abstract |
This paper reports the results of the properties of concrete using stabilizing agent for recycling water(SA). Test parameters are the contents of SA, the concentration of recycling water and curing temperature. For fresh concrete, remarkable difference of slump and air content was not observed with the use of SA, regardless of contents of SA. The use of SA reduced the bleeding and accelerated the setting time. The contents of SA and solid contents did not affect the properties of fresh concrete. For compressive strength, the individual use of recycling water resulted in a decrease in compressive strength while, combination of recycling water and SA enhanced compressive strength as much as similar level of plain concrete. The combination of 0.15% of SA contents and 3% of concentration of recycling water exhibited the highest compressive strength of concrete. The use of SA also compensated the enhanced drying shrinkage caused by recycling water. An increase in SA content led to reduce drying shrinkage. Drying shrinkage was observed to decrease at 5% of recycling water concentration, whereas at 1 and 3% it was decreased. The curing temperature did not affect the performance of SA. With properly mixed with recycling water in 5% of concentration and SA with 0.15～0.30%, it can be beneficial effects on the qualities of concrete. |