Polymer-modified adhesive mortar
Details
Polymer-Modified Adhesive Mortar
Compliance Standard: JG 149-2013
Features: High bond strength, excellent deformation resistance, high sag resistance, high water retention
Application Method:
1. Substrate Preparation: Must be solid, clean, free of oil, dust, and loose particles. High-absorption substrates require wetting (no standing water). Smooth or low-absorption substrates should be treated with a primer.
2. Mixing: Strictly follow the product instructions for mixing ratio and time (typically dry mix first, then add water and mix until uniform and lump-free). Allow to cure briefly before stirring lightly before use. Do not add extra water.
3. Insulation Board Application: Apply adhesive to the back of insulation boards using the dot-and-frame or strip-bonding method. Press boards firmly onto the substrate wall to ensure effective bonding coverage.
4. Curing: Avoid exposure to rain, direct sunlight, and severe vibration during the initial curing period (typically 24-48 hours).
Definition of HJ Prefabricated Non-Removable Bottom Formwork Reinforced Truss Composite Slabs and Their Differences from Common Composite Slabs?
HJ Prefabricated Non-Removable Bottom Formwork Reinforced Truss Composite Slab: Serves as the primary non-removable integrated formwork.
Manufactured using intelligent production methods, it features a 20mm fine aggregate concrete base slab. The reinforced truss is anchored to the base slab through fixed connections, forming an integrated structure.
Construction Phase: The base slab functions as formwork, eliminating or minimizing the need for additional support.
Service Phase: The bottom formwork and the subsequently poured concrete jointly bear loads, serving as the lower chord reinforcement protective layer. It functions as an integral structural component of the floor slab, eliminating the need for formwork removal.
What are the core competitive advantages of our company's HJ prefabricated steel truss composite panels with non-removable bottom formwork?
What are the quality inspection standards for HJ prefabricated steel truss composite panels with non-removable bottom formwork?
Entry Inspection Phase -- Basis: Appendix E of Industry Standard JC/T “Technical Specifications for Application of Non-Removable Bottom Formwork Reinforced Truss Composite Panels”
Test Method: (Using 2-80 as an example)
Randomly select 2 panels per 100 panels as test specimens. Distribute 390 kg/m² load weights evenly across the single test panel in 3 stages (support span 200 cm). After each 130 kg/m² loading, perform watering tests from the top surface and inspect water penetration on the bottom surface at 10-minute intervals. After completing three loading cycles and three watering tests, the panel is deemed qualified if:
- No single crack exceeds 50 mm in length
- No crack exceeds 0.1 mm in width
- ≤2 cracks per panel
Final Acceptance Phase - Basis: Appendix G of Industry Standard JC/T Technical Specifications for Application of Reinforced Truss Composite Panels with Non-Removable Bottom Formwork
The bottom surface of HJ prefabricated non-removable bottom formwork steel truss composite panels shall not exhibit severe defects. For existing crack defects, the construction unit shall propose a technical treatment plan (refer to Appendix G) and implement it after approval by the supervision unit. Treated areas shall undergo re-inspection.
Crack repair for HJ prefabricated non-removable bottom formwork steel truss composite panels employs methods such as surface sealing, injection, and filling with sealant.
Are there any representative project cases? For which types of structures is this product suitable?
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