Composite high titanium and dry slag pavement concrete and preparation method thereof

Abstract

The invention discloses composite high titanium and dry slag pavement concrete and a preparation method thereof, belonging to the field of concrete. The composite high titanium and dry slag pavement concrete with high breaking strength, which is prepared from high titanium and dry slag aggregate, comprises the following raw materials calculated according to each cubic meter of concrete: 300-340kgof cement, 630-710kg of high titanium and dry slag sand, 1200-1300kg of high titanium and dry slag stone, 160-175kg of water and 55-95kg of high titanium and dry slag composite powder. The invention also provides the preparation method of the pavement concrete. The raw materials are mixed according to the weight portion and feeding sequences of the high titanium and dry slag stone, the cement andthe high titanium and dry slag composite micropowder, the high titanium and dry slag sand and the water. The breaking strengths of the composite high titanium and dry slag pavement concrete obtained by the invention are 7d-6.16-6.38MPa and 28d-7.5-7.68Mpa respectively.

Description

technical field [0001] The invention relates to a compound high-titanium heavy slag pavement concrete and a preparation method thereof, belonging to the field of concrete. Background technique [0002] High-titanium heavy slag is a kind of dense slag with a certain strength formed by the natural cooling or water cooling of the molten slag produced during the smelting of vanadium-titanium magnetite in Panzhihua Iron and Steel's ordinary blast furnace. Compared with ordinary blast furnace slag, titanium dioxide (TiO 2 ) content is as high as 20% to 24%, and the calcium oxide content is low, that is, the water slag produced by this raw material is an inactive material. Therefore, Panzhihua Iron and Steel has more than 55 million tons of high-titanium heavy slag that has not been used so far. 1,000 mu, and the slag discharge volume is increasing by 3 million tons every year. Panzhihua Iron and Steel is already facing the situation that there is nowhere to discharge slag. On th...

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Problems solved by technology

For the utilization of titanium extraction, although it is the most ideal goal to realize the value of high-titanium heavy slag, due to the current technical constraints, the utilization cost is high, and the consumption of blast furnace slag is also extremely limited. To deal with the real problem of polluting the environment, the most urgent task is to take the way of using high-titanium heavy slag as building materials.

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