Concrete is an artificial stone manufactured by mixing cement , sand and gravel (as aggregates) with water, followed by hardening. Boasting high compressive strength, excellent durability, low cost and outstanding formability, it is the most widely used civil engineering material worldwide. Its core applications fall into five major categories:

1. Building Engineering (Civil & Industrial)

Civil construction: High-rise residential buildings, office towers, villas, basements, floor slabs, beams, columns, shear walls, floor screeds, protective layers for roof waterproofing

Industrial construction: Load-bearing structures of factory buildings, equipment foundations, warehouse floors, special concrete structures for explosion and impact resistance

2. Transportation Infrastructure

Highway pavements, bridge piers and box girders, tunnel linings, metro stations and shield segments, airport runways, breakwaters for ports, railway subgrades, culverts.

3. Water Conservancy & Municipal Engineering

Dams, reservoirs, river revetments, sewage treatment tanks, water supply and drainage pipelines, urban comprehensive utility tunnels, water storage tanks, landscape pools.

4. Special Protective Engineering

Nuclear radiation-shielding concrete, civil air defense underground shelters, military fortifications, corrosion-resistant chemical storage tanks, base slabs for high-temperature refractory kilns.

5. Innovative Advanced Construction

3D printed buildings, precast prefabricated components, artistic exposed concrete facades.

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.

3D Printing Concrete

3D printing concrete is a special fiber-reinforced concrete designed for extrusion-based 3D printing equipment. It is formed by layer-by-layer extrusion and stacking without formwork. This product adopts low or zero coarse aggregate content with abundant fine sand, combined with polycarboxylate high slump-retaining admixtures, cellulose thickeners and short fibers to regulate rheological properties.

It is mainly applied to small landscape structures, temporary resettlement housing, low-rise building walls, municipal landscape ornaments, special-shaped artistic exposed concrete components, and emergency disaster-relief buildings.

Advantages of 3D printing concrete
No formwork required, free-form design, fast construction speed and low labor costs.

Performance requirements
Good extrudability and smooth pumpability without nozzle clogging; instant shape retention after extrusion to avoid collapse of upper printed layers; strong interlayer bonding without delamination or gaps between layers; low shrinkage, early strength development and rapid hardening performance.

Recommended Products for 3D Printing Concrete

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