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   Project Title

Structural Crack Repairs at L2, L3, and L4 of a High Rise Residential Building, Kuala Lumpur

   Nature of Problem

Some slab panels of a residential building were observed to suffer from cracks ranging from 0.9mm to 3.0mm, at Level 2, Level 3 and Level 4. Depth of cracks measured were close to 140mm.

   The Solution

Rectification of dry cracks was carried out by cleaning out the cracks, and flooding the crack with Roadware 10 Minutes Concrete Mender. The material self-injects into the crack and silica sand is added occasionally to the surface and the excess material is wiped away with a trowel. The repaired area was fully trafficable after 10 minutes and a grinding stone was used to match the repaired area with its surroundings.

  Benefits of SCRC

Project Title

Rectification and Strengthening Works to The Pier of Jambatan Jalan Kg Baru Laluan R103 at Kuala Perlis, Perlis Indera Kayangan

Nature of Problem

Spalling concrete and deteriorated existing reinforcement bar were observed at splash zone of pier feet where subjected to cyclic wet and dry environment. Over the years, the piers were observed with substantial section loss well before design life due to marine environment exposure requiring immediate strengthening and remediation works.

The Solution

Pier protection was carried out to the affected pers by removing damaged concrete and reinforcement bars, and reinstate by means of pier enlargement using Self – Compacting Remediation Concrete (SCRC). The remediation works included installation of sacrificial anodes (CorrPre Anodes) and protective coating using polymer modified cementitious coating, Flexcrete Cemprotec E942.

Project Title

Proposed Strengthening Works for Three Numbers of Beam and Twoo Number of Slabs at Fast Track 3A CFPP M5 Project, Manjung, Perak.

Nature of Problem

Strengthening to the existing main beam, secondary beams and slabs were required due to loss of strength after fire in the CCB UPS Battery Room.

The Solution

Rectification and reinstatement works involved formwork grouting using shrinkage compensated cementitious grout to recast the slab opening. New opening involved controlled demolition and opening works including diamond cutting and coring in the reinforced slab to the required size of opening.

Structural strengthening to the new opening for the reinforced staircase construction was carried out by installing universal I beams.

 

New Crack Repair Technology – Roadware

  • High-penetration two-part hybrid urethane that combines with manufactured sand to form a tough instant polymer concrete.
  • Extremely low viscosity and properties that allow deep penetration into concrete.

Benefits of Roadware 10 Minute Concrete Mender

Project Profile

Some slab panels of a residential building were observed to suffer from cracks ranging from 0.9mm to 3.0mm. Depth of cracks were close to 140mm.
Structural cracks detected in the slab were rectified using Roadware 10 Minute Concrete Mender.

Project Title

Proposed Rehabilitation of 7 Numbers od Double-T Beams at Approach Bridge at Star Cruise Terminal Porto Malai, Langkawi 

Nature of Problem

Fire had seriously damaged the underside structures at one apartment unit on Level 7 at Tanjung Tuan Resort, Port Dickson.

The Solution

RNC Technology (M) Sdn Bhd was engaged to carry on the condition assessment and concrete testing work to the damages structures. Test report had shown that the in-situ concrete strength is below the allowable grade.

Strengthening was carried out to the affected beams using CFRP and to the affected slab by thickening the soffit of slab. Remedial works such as patching and crack repair were also carried out to the defective areas.

 

Project Title

Proposed Timber Pile Assessment and Pile Strengthening Works to Old K.K Wharf, Sabah

Nature of Problem

In order to determine the condition of existing 52 numbers of timber piles, underwater inspection was proposed to be conducted to determine the extent of defects and their dimensions.

The Solution

Underwater inspection to selected timber piles included cleaning of marine growth from under deck to seabed, swim by for overall condition survey including determination of decay and any anomalies present in the piles. The depth of piles was measured using a measuring tape from underdeck to seabed level. Observations and findings were recorded.

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