recycling of steel slag aggregate in portland cement concretean

Page 2 C APPROVED WASTE MATERIALS Several waste materials have been approved for routine use in high-way construction. These materials include: C Fly ash in flowable fill and portland cement concrete (PCC). C Ground granulated blast furnace slag in PCC. C Recycled PCC. C Chrome and steel slag in hot mix asphalt concrete (HMAC) for low volume routes.

20] S.R. Yadav, S. R. Pathak, Use of recycled concrete aggregate in making concrete- an overview, 34th Conference on our world in concrete & structures: 16 – 18 August ( ), Singapore. [21] W. Sami, S. Tabsh, A. Akmal, Influence of recycled concrete aggregates on strength properties of concrete, Construction and Building Materials, 23

Salt et al. 1994, Brabrand and Loehr 1993) This recycling option is currently practiced by the Tampa Port Authority, along with three cement kilns throughout the state of Florida. Used ABM also has the potential to be used as aggregate in the production of Portland cement concrete and in the production of asphalt concrete for roadways.

How do you make Portland cement? Manufacturing. Portland cement clinker is made by heating, in a cement kiln, a mixture of raw materials to a calcining temperature of above 600 °C (1,112 °F) and then a fusion temperature, which is about 1,450 °C (2,640 °F) for modern cements, to

concrete in accordance with 702 may be used as a substitution for pavement concrete described herein, provided that class AP coarse aggregate is used in the concrete. If portland pozzolan cement, type IP, or air-entraining portland pozzolan cement, type IP-A, are to be used in pavement concrete, the cement content shall be increased by a multiplier

In particular, to use steel slag as the aggregate in concrete, an expansion test of steel slag must be performed. The immersion expansion ratio of steel slag must be below 2% to satisfy the required specifications [20]. To measure its immersion expansion by a direct method, the steel slag is prepared, based on the JIS A 5015 [20].

The invention discloses steel slag aggregate foam concrete, and belongs to the technical field of concrete. The concrete consists of the following components in percentage by mass: 20-40% of cement, 50-70% of steel slag fine aggregate, 10-20% of water and 1.0-1.8kg/m<3> of a foaming agent. The steel slag aggregate foam concrete can reduce appearance density and heat conductivity coefficient of

Aug 02,  · Ferrochromium slag generated annually is estimated as 15 million tons [ 5 ]. Utilization of this waste material in concrete may help to reduce the need for natural aggregates and decrease the environmental impact of concrete. Although there are studies on the use of ferrochromium slag in road construction [ 7, 9, 10 ], most of the slag obtained

When substituted for portland cement in quantities between 25% and 65%, slag cement plays a vital role in reducing permeability in concrete. SCIC #6, Reducing Permeability, explains how low-permeability concrete has a reduced potential for corrosion of reinforcing steel, and provides a brief discussion of how standard test method ASTM C1202

Lighten up on the environment. Reduce the weight of your structural concrete. Tru Lite Lightweight Aggregate ™ supports Green Building because it contains blast furnace slag — recycling slag this way means reducing use of non-renewable resources. The resulting aggregate offers unique benefits with diverse applications throughout the construction materials industry.

mer and Portland cement pastes, the MPCM was added as an addi-tional 20 vol% of powder materials. In order to have comparable data for GPC and PCC, the total amount of liquid (alkaline solution + extra water) to the geopoly-mer binder and the water to cement ratio for the Portland cement were kept constant at 0.5. In addition, the combined