Precast Concrete

Precast concrete components refer to concrete products cast and cured inside standardized molds in factories before being transported to construction sites for assembly, differing from cast-in-place concrete poured on site.

Currently available precast products include precast floor slabs, wall panels, beams, columns, staircases, balconies, metro tunnel segments, bridge box girders, boundary walls, permeable bricks and decorative cladding panels. They are widely used in prefabricated residential buildings, industrialized factories, urban bridges, tunnels and underground utility tunnels.

Cured under constant temperature in factories, precast components feature stable strength, high surface flatness and premium exposed decorative effects. Pipelines, thermal insulation layers and waterproof layers can be embedded and integrated during production. Defoamers optimize surface appearance, while expansive agents control shrinkage cracks.

Precast Concretes supply very fast on-site construction, less dust generation, high dimensional precision and superior durability. But need to consider high transportation costs, high requirements for hoisting equipment, and strict requirements for joint waterproofing treatment between components.

GUUDPOLY^® Air-entraining Agent introduces stable micro air bubbles to concrete, improving its frost resistance and impermeability. It is an indispensable admixture for pavements in frigid regions and hydraulic concrete.

GUUDPOLY^® Expansion Agent generates slight volumetric expansion upon contact with water after concrete hardens, counteracting shrinkage and cracking.

GUUDPOLY^® Viscosity Enhancer improves the cohesiveness of cement paste and prevents segregation, serving as a core admixture for 3D printed concrete and self-compacting concrete.

GUUDPOLY^® Defoamer eliminates excessive large air bubbles to improve surface smoothness, and is suitable for exposed precast components.

Recommended Products for Precast Concrete

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