Hybrid nanoparticle reinforced ecological pervious concrete and preparation method thereof

Abstract

The invention discloses hybrid nanoparticle reinforced ecological pervious concrete and a preparation method thereof, wherein the ecological pervious concrete comprises 200 to 350 parts of cement, 15to 60 parts of fly ash, 200 to 900 parts of broken stone, 200 to 800 parts of waste glass aggregate, 0.02 to 0.06 part of cellulose ether, 0.05 to 0.3 part of fatty alcohol emulsion, 3 to 15 parts ofnano titanium dioxide, 12 to 25 parts of a hybrid nanoparticle solution and 60 to 120 parts of water. The preparation method of the concrete comprises the following steps: (1) uniformly mixing water,nano titanium dioxide and waste glass aggregate to obtain a mixture; (2) preparing a hybrid nanoparticle solution; (3) adding cement, fly ash, broken stone, cellulose ether, fatty alcohol emulsion andthe hybrid nanoparticle solution into the mixture obtained in the step (1), and stirring; and (4) pouring the product obtained in the step (2) into a mold, maintaining for 7-28 days, and demolding toobtain the hybrid nanoparticle reinforced ecological pervious concrete. According to the concrete, the degradation effect of pervious concrete on pollutants can be improved, the corrosion resistancecoefficient of the concrete reaches 96%, the pervious coefficient reaches 5.1 mm / s, and the 28d compressive strength reaches 35.5 Mpa.

Description

technical field [0001] The invention relates to an ecological permeable concrete and a preparation method thereof, more specifically, to a hybrid nanoparticle-reinforced ecological permeable concrete and a preparation method thereof. Background technique [0002] The pavement of permeable concrete can realize the infiltration of rainwater, reduce surface runoff and alleviate the urban heat island effect. Permeable concrete is a kind of porous concrete material. The cement paste wraps the aggregate to form a skeleton-pore structure. The aggregate is usually a single-size coarse aggregate. Since the hardened slurry between the aggregates is thin, it is prone to shrinkage during service. In order to overcome this shortcoming, it is usually necessary to add component materials to improve the durability of the hardened slurry. At present, in order to improve the ecological performance of pervious concrete, Construction waste and mineral waste will be mixed into the slurry compon...

AI Technical Summary

Problems solved by technology

However, for pervious concrete, due to the opacity of cementitious materials and traditional aggregates, most of the light action is still concentrated on the concrete surface, relying only on the reflection and scattering of the inner hole wall, the introduction of light intensity is limited, which limits the use of pervious concrete. The overall purification function is exerted