precast wall – CBU ASIA DESIGN BUILD CONSULTANTS CEBU https://finefinish.cbu.asia Construction Planning Designing Build Consultants Cebu Thu, 14 Sep 2023 05:35:51 +0000 en-US hourly 1 https://finefinish.cbu.asia/wp-content/uploads/2023/06/cropped-TEKTON-icon-32x32.jpg precast wall – CBU ASIA DESIGN BUILD CONSULTANTS CEBU https://finefinish.cbu.asia 32 32 Pre-cast pre fabricated walls https://finefinish.cbu.asia/pre-cast-pre-fabricated-fast-walls/ https://finefinish.cbu.asia/pre-cast-pre-fabricated-fast-walls/#comments Thu, 16 Apr 2020 23:05:14 +0000 https://finefinish.cbu.asia/?p=2411

Continue reading]]> If you’re looking to save on the cost of your structure – you can reduce the cost of labor by using pre-fabricated (pre-fab) walls that is still concrete based but light weight, thermally efficient, fire resistant, and acoustically effective.

Pre-fab / pre-cast walls have recently gained popularity due to its ease of use (installation), and labor cost efficiency.

The city of Cebu’s COVID shelter – a fast response make shift hospital is using this pre-fab type of wall thru pre-fab walls. 

So instead of piling, hollow blocks, filling it with cement, then plastering it with concrete paste, you simply have to install these wide cut prefab walls – thus cutting your labor cost and speeding up your construction time up to 5-10 times faster.

Despite it being relatively more costly compared to hollow blocks you will be able to save a lot on your labor cost since you no longer need to apply plaster on the walls – rather just paint right away. You only need to patch the corners then apply the finishing paint directly.

These pre-cast walls are made of concrete, fibers, ash and / or coal powder, and expanded Polystyrene (EPS) foam granules – sandwiched by waterproof and flexible smoothened fiber cement board on both surfaces.

The pre-fab wall passes all required engineering and building code standards please see table as follows:

  PROPERTIES / DESCRIPTION
NATIONAL STANDARD TESTING INDEX
Anti-Impact Rating (Times)75mm

≥5		90mm

≥5		120mm

≥5		75mm

≥8		90mm

≥10		120mm

≥15
Anti-bending Load Rating Load (Times Over)≥1.5≥1.5≥1.5≥3≥4≥5
Compressive Strength (MPa)≥3.5≥3.5≥3.5≥5≥5≥5
Softening Coefficient≥0.80≥0.80≥0.80≥1≥1≥1
Surface Density≤70≤90≤110≤55≤70≤85
Moisture Rate (%)≤12≤10≤8≤10≤9≤7
Drying Shrinkage Value (mm/m)≤0.6≤0.6≤0.6≤0.45≤0.5≤0.5
Drying Shrinkage Value (N/mm/m)≥1000≥1000≥1000≥1200≥1300≥1500
Sound Insulation Rating in the air (dB)≥30≥35≥40≥35≥40≥45
Fireproof rating (h)≥1≥1≥1≥2.5≥3≥4
Heat transfer coefficient (b/w/m2)  ≤1.0  ≤1.0
Radioactivity Limit (solid boards)≤1≤1≤1≤1≤1≤1
Inner radiation indexes≤1≤1≤1≤1≤1≤1
Outer radiation indexes≤1≤1≤1≤1≤1≤1

Also, because the thickest wall is only 12 centimeters, and since you no longer need to apply finishing plaster, compared to hollow blocks that could go as thick as 6 inches including the finishing plaster, this pre-fab composite wall can give you up to 4.2% living space compared to traditional hollow blocks.

Composite pre-fab wall is now our preferred walling system:

  1. EASY TO INSTALL – The tongue and groove design reduces installation time and decreases labor costs. The Electrical, plumbing installations, and other finishing touches can be done 5 – 10 times faster than when done on the traditional hollow blocks wall.
  1. FIRE RETARDANT – Tested to withstand up to 1,000˚C for 120 minutes and is compliant to the standard for Grade A Fireproof Material.
  1. REDUCES NOISE: – The Expanded Polystyrene (EPS) foam granules is widely known in the construction industry as good noise reducer.
  1. SEISMIC RESILIENT. EPS – the foam granules is highly flexible. Combined with fiber cement makes for a highly flexible yet sturdy wall that resists bending due to seismic activity.
  • STRUCTURALLY AND ECONOMICAL EFFICIENT. The composite wall is made up of light materials and are 1/6th the weight of normal 120mm thick brick walls yet 60% lighter than traditional hollow blocks. This makes for a light weight wall that reduces beam and slab load which means significant cost reduction on the structural frame. The pre-cast panels are also moisture proof, water resistant, yet ready for painting right after installation (Must use recommended sealants and adhesives).
  • THERMALLY EFFICIENT AND ENVIRONMENT FRIENDLY. As per tests, the composite pre-cast wall is thermally efficient in heat absorption and dissipation due to the high density of EPS and the rest of the high-density composite materials used. The EPS foam granules is the same material used in cooler chests / portable ice chests. This results in a cooler room which means you don’t need to use air conditioning as much as you do – thus saving the environment and your pocket.

Our precast walls come in 8 x 2 feet sizes in 7.5, 9.0, and 12 centimeter thickness. [See image gallery at finefinish.cbu.asia]

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