|
|
|
| Study on the Properties of the Steel Slag- cement Surfafce Mortar |
1. Jiangsu Yi Fu New Material Technology Co.,Ltd., 2. School of Material Engineering, Yancheng Institute of Technology 3. School of material science and engineering, Nanjing Univesity of Technology
|
|
|
|
|
Abstract This paper studied the effects of steel slag, slag, desulfurization gypsum and fly ash on properties of mortar. The results showed that the compressive strength and flexural strength of steel slag-cement composite material declined with the increasing of steel slag. The 28d compressive strength and flexural strength of steel slag-cement composite material with 20 wt.% slag is 49.2MPa and 6.8MPa respectively, which increased by 3.3% and 16.2% compared with that without slag. Mechanical properties of steel slag-cement-slag composite material could be improved when the content of desulfurization gypsum was 3wt.%. When the content of plasticizer was 0.4wt.%, the workability of cement mortar was good. In addition, the 28d compressive strength of steel cement mortar reached to13.5MPa（meeting the requirements of M10）when the sand ratio was 1:4. Besides, the 28d compressive strength of steel cement mortar reached to 7.5MPa（meeting the requirements of M5） when the sand ratio was 1:5.
|
|
Received: 26 May 2014
Published: 17 May 2018
|
|
|
|
|
|
|
|
