Concrete Cover & Frame

OKA CORPORATION BHD. (519941-H)
Subsidiary Companies:
OKA Concrete Industries Sdn. Bhd. (67634-M)
OKA Engineering and Trading Sdn. Bhd. (329917-W)
OKA Readymixed Concrete Sdn. Bhd. (329980-T)
Real Charisma Sdn. Bhd. (442658-D)
Pembinaan Cahaya Emas Sdn. Bhd. (601222-W)

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Products > Concrete Cover & Frame

PDF Brochure

PRECAST CONCRETE COVER & FRAME
for Precast / In-situ Concrete Manholes

TYPES OF PRECAST CONCRETE COVER & FRAME:
•	Light-duty type,
•	Medium-duty type,
•	Heavy-duty Type (Class D400 - 400 kN)
SPECIFICATIONS
•	Manhole Cover & Frame are designed and tested to BS EN124
•	Concrete: Steel Fiber Reinforced Ultra High Performance Ductile Concrete Grade 150 composes of ordinary Portland cement, fine sand, silica fume, steel micro-steel fiber.
	Mean cube compressive strength	> 150 MPa (28 days)
	Mean flexure strength/modulus of rupture	> 20 MPa (28 days)
	Mean water absorption	< 0.25% (28 days)
	Rapid chloride permeability test (RCPT)	< 200 coulombs


SHALLOW MANHOLES	DEEP MANHOLES

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