Cát Mộc’s Wall Construction Process

29 March 2025

Building a cozy and durable house is a complex process that requires attention to every detail, with wall construction playing a crucial role. Walls not only serve as structural and protective elements but also contribute to aesthetics, soundproofing, thermal insulation, and safety.
At Cát Mộc, wall construction follows the Ministry of Construction’s standards and Cát Mộc’s unique, specialized quality criteria. Additionally, we strictly manage construction safety to ensure both structural integrity and worker safety.Z6119866593594 Acb742cc181aed7616763309f049c590

Let’s take a closer look at Cát Mộc’s standardized wall construction process.

Material Preparation

Since the project is for residential construction, high-strength bricks are used to ensure crack resistance. These bricks are made from molded and fired clay, including:

  • Hollow bricks (4-hole) 80x80x180mm
  • Solid bricks (thin bricks) 40x80x180mm

Other essential materials include:

  • INSEE cement (used within its shelf life and stored under proper conditions).
  • Clean, fine sand, free of impurities and with uniform grain size.
  • Clean water, sourced from the local supply.
  • M75 mortar mix, carefully proportioned to prevent weak mortar (which reduces bonding strength) or over-strengthened mortar (which leads to material waste).

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Technical Requirements & Construction Methods

  • Surface Preparation: Before construction, the contact surfaces must be cleaned. A cement slurry coat is applied to ensure proper adhesion between the new brickwork and concrete elements.
  • Brick Moistening: Bricks must be moistened before laying to prevent excessive water absorption from the mortar.
  • Mortar Thickness:
    • Horizontal joints: 12mm thick.
    • Vertical joints: 10mm thick.
  • Brick Cutting: Bricks are cut to fit specific dimensions when dealing with irregular spaces.
  • Construction Height Limit: Each construction phase should not exceed 1.5 meters.
  • Structural Reinforcement:
    • Walls over 4 meters in length require reinforced concrete wall pilasters with embedded steel reinforcement.
    • The final row of bricks (where walls meet beams or floors) must be laid at a 45-degree angle using solid bricks. All gaps must be sealed properly to prevent cracking at the wall-beam joint.
    • If beams/floors are not yet in place, walls should be built up to the bottom level of the future beam.
  • Wall Thickness Guidelines:
    • 200mm walls: Constructed with five layers of hollow bricks, followed by one layer of solid bricks placed perpendicularly for reinforcement. The first three layers at the base must use solid bricks.
  • Steel Reinforcement Anchors:
    • Embedded ϕ6 steel rods should be installed:
      • Two rods for 200mm-thick walls.
      • One rod for 100mm-thick walls.
    • If post-installed, use Sikadur 731 epoxy adhesive for secure anchoring.
    • Vertical spacing: 500mm.
    • Embedded length into concrete**: 500mm.
  • Partition Wall Installation:
    • Partition walls must be tied into the main walls and anchored every four brick courses.
  • Handling & Protection:
    • Avoid strong impacts or placing materials/tools directly on freshly laid walls.
    • When extending an existing wall, it must be cleaned and dampened before new layers are added.
  • Curing Process: Once the wall has set properly, a curing process is carried out to ensure its strength and durability.
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