An existing commercial building in Surabaya is undergoing renovation, including replacing most of the exterior walls with aerated concrete panels (ALC Blocks) for better thermal insulation. The main challenge was finding an adhesive that was weather-resistant, had strong adhesion, and minimal shrinkage.
JOE Joint Bonding Adhesive Application
• Application: Installation of ALC blocks for exterior and interior walls.
• Method: JOE Joint Bonding Adhesive is applied to a clean, damp ALC block surface using a trowel specifically designed for ALC blocks, ensuring full coverage for maximum bonding.
• Volume: Approximately 800 m² of wall.
Relevant JOE Bond Technical Specifications
• Weight: 40 kg/bag
• Consumption (estimated): 2.2 kg/m² (may vary depending on application thickness on ALC)
• Density: 1.4 gm/cm³
• Drying Shrinkage: Very low (prevents cracking in exterior joints)
• Water Resistance: Excellent (important for exterior applications)
• Compressive & Bonding Strength: Excellent
Cost Estimate
• JOE Joint Bonding Adhesive Price: Rp 150,000/bag (estimated price)
• Material Requirement: 800 m² * 2.2 kg/m² = 1760 kg
• Number of Bags: 1760 kg / 40 kg/bag = 44 bags. • Total Material Cost: 44 bags * Rp 150,000/bag = Rp 6,600,000
Benefits Achieved
• Weather Resistance: JOE Bond's waterproof formulation ensures that exterior wall joints remain strong and protected from rainwater penetration.
• Minimal Cracking: The extremely low drying shrinkage prevents cracking at joints, a common problem in exterior walls exposed to temperature changes.
• Improved Insulation: With strong, dense joints, the thermal insulation efficiency of ALC blocks is not compromised, contributing to building energy savings.
• Long-Term Quality: The strong, durable adhesive reduces the need for future repairs and maintenance, providing peace of mind to building owners.
