ART-PE is a special admixture that generates a controlled internal expansion through chemical reaction. It is primarily used to compensate for shrinkage stresses during concrete hardening, thereby improving crack resistance and impermeability.
When the expanding agent is added to concrete, it takes part in an activation reaction. Under the restraint provided by reinforcement and adjacent elements, this reaction produces a limited expansion that counteracts the tensile stresses caused by concrete shrinkage. As a result, it prevents excessive shrinkage-induced cracking and effectively enhances the concrete 's crack-resistance and waterproofing performance.
Items | Performance |
Specific surface area / (m²/kg) | ≥200 |
Residue on 1.18 mm sieve / % | ≤0.5 |
TypeⅠ: restrained expansion in water at 7 d( %) | ≥ 0.035 |
TypeⅡ restrained expansion in water at 7 d( %) | ≥ 0.050 |
TypeⅠ: restrained expansion in air at 21 d( %) | ≥ –0.015 |
Type Ⅱ: restrained expansion in air at 21 d( %) | ≥ –0.010 |
7-day compressive strength (MPa) | ≥22.5 |
28-day compressive strength (MPa) | ≥42.5 |
Basement crack-resistant waterproofing
In a basement-slab project threatened by early-age shrinkage and leakage, ART-PE expansive agent was added to the mix. The additive offset shrinkage, cut crack formation and markedly increased slab density, delivering integral waterproofing without additional membranes.
Water-tank construction
For a large water-tank with extensive area and complex restraints, ART-PE expansive agent was batched into the concrete. It greatly reduced shrinkage-cracking risk, boosted overall density and impermeability, and remained stable throughout placement, meeting all site and QC requirements.
Dosage
Typical dosage: 8 –12% of the total cementitious material weight; adjust to meet project requirements.
Mix design
Minimum cement content: 300 kg/m3 ; the agent may replace an equal mass of cementitious material or the aggregate content may be adjusted accordingly.
Mixing & placing
Add together with cement and aggregates; extend compulsory mixing time by ≥30s. Cover and cure immediately after placing; curing period ≥ 14 days.
GB/T 23439-2017 "Expansive agents for concrete"
25kg bag for customer demand
It should be stored in a cool and dry place, avoiding direct sunlight, and kept in a dedicated warehouse or a fixed location.
The effective storage period is 6 months. It can still be used after being tested and verified to be qualified if it exceeds the time limit.
When changing the type of cement or using newly delivered cement, a compatibility test should be conducted.
Do not use in combination with naphthalene-based admixtures. When using in combination with other admixtures, compatibility tests should be performed.
Strictly follow the construction specifications during application.
The product information is only used to describe the product's characteristics and functions, and it is not a guarantee. Users are also required to carefully test the product's functions and its suitability. The functions and suitability of the product must be verified through testing conducted by qualified professionals.
Retaining or disclosing product samples without the company's explicit permission is strictly prohibited.
In addition to the product quality itself, the actual performance also depends on other uncontrollable factors. If there are uncontrollable factors, company cannot guarantee the performance of the product.
Users are requested to strictly follow the technical guidance and product instructions for use. The company shall not be liable for any consequences resulting from unauthorized changes to the product usage method without the company's authorization.
Underground & hydraulic works
Basements, subways, tunnels, water tanks and other crack-resistant, impermeable structures l Structural waterproofing
Rigid roofs, floor slabs, post-cast strips and equipment-foundation anchoring
Special conditions
Projects where the long-term ambient temperature is ≤ 80 ° C (calcium sulfo-aluminate expanders are not suitable for environments above 80 °C)
Address
22 Huixin Road, Nanjing, China
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