Concrete & Constituents

Simon H. H. Hung

Operations Manager

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Since 1982, ETL’s Concrete & Constituents division has been providing a comprehensive range of testing services, offering clients comprehensive services in Aggregates, Cement, Concrete, Grout, Paving Blocks, Pulverized Fuel Ash and Repair Mortar.

 

Offering a number of tests that few companies provide (e.g. RCPT and Water Absorption Concrete testing), ETL’s Concrete & Constituents division was awarded accreditation for CS3 on Aggregate Testing in 2013.

 

For further information or to receive a quote, please contact the Concrete & Constituents team

Aggregates
  • Sampling

  • Aggregate Crush Value

  • Aggregate Impact Value

  • Alkali Silica Reaction Potential by Ultra-Accelerated Mortar Bar Test

  • Compacting Fraction Value of Aggregates for Granular Bed

  • Clay, Silt and Dust Content

  • Elongation Index

  • Flakiness Index

  • Los Angeles Value

  • Methylene Blue Value

  • Moisture Content

  • Particle Density & Water Absorption

  • Particle Size Distribution

  • Relative Density & Water Absorption

  • Shell Content

  • 10% Fines Value

Cement
  • Sampling

  • Compressive Strength of Broken Mortar Prism in the Force Range 2kN-250kN

  • Density

  • Fineness

  • Flexural Strength of Mortar Prism in the Force Range 2kN-250kN

  • Setting Times

  • Soundness

  • Standard Consistence

Concrete
  • Mixing & Sampling of Fresh Concrete in Laboratory

  • Sampling Fresh Concrete on Site

  • Slump

  • Compacting Factor

  • Flow Table Test

  • Slump Flow Test

  • Density of Compacted Fresh Concrete

  • Making Test Cubes and Cylinders from Fresh Concrete

  • Curing Test Specimens (Tropical Zone Temperature)

  • Density of Hardened Concrete

  • Compressive Strength of Concrete Cube Tests 50-3000kN

  • Compressive Strength of Concrete Core Tests 50-3000kN

  • Water Absorption

  • Setting Time Monitoring of Fresh Concrete

  • Assessment of Cement, Aggregate & Water Content of Fresh Concrete (Buoyancy Method)

  • Measurement of Rate of Absorption of Water by Hydraulic Cement Concrete (Water Sorptivity Test)

  • Stiffening Time

  • Depth of Penetration of Water under Pressure

  • Resist Chloride Ion Penetration Test (RCPT)

Grout
  • Preparation of Trial Mix

  • Early-Age Change of Height

  • Making & Curing of Grout Cubes

  • Compressive Strength of Grout Cubes Tests 50-3000kN

  • Flow of Grout for Preplaced-Aggregate Concrete (Flow Cone Method)

  • Bleeding & Free Expansion

  • Expansion & Bleeding of Freshly Mixed Grouts for Preplaced-Aggregate Concrete

Paving Blocks
  • Compressive Strength of Paving Blocks 50kN-3000kN

  • Dimension

  • Skid Resistance Value of Paving Blocks

  • Transverse Breaking Load

  • Water Absorption

Pulverized Fuel Ash
  • Moisture Content

  • Fineness

  • Water Requirement

Repair Mortar
  • Trial Mix

  • Making Test Cube

  • Compressive Strength of Test Cubes 50kN-2000kN

  • Flow

Job Reference

On Site Fresh Concrete Test (Sampling, Slump, Making Cube Samples)

Date: January 2015 to present

Division: Concrete & Constituents

Project: THE i New Campus at J/O Shing Tai Road and Wing Tai Road, Chai Wan, Hong Kong (Inland Lot No. 182) Main Contract Works

Client: Unistress Building Construction Ltd

Aggregates Tests (PSD, 10 % Fines Value, Flakiness & Elongation Index)

Date: January 2016 to present

Division: Concrete & Constituents

Project: Material Control

Client: Yue Xiu Concrete Co Ltd

Compressive Strength of Concrete Core

Date: March 2016 to present

Division: Concrete & Constituents

Project: Construction of Public Housing at Cheung Sha Wan Wholesale Food Market Site 3 and Site 5 Phases 1 & 2

Client: Aggressive Construction Co Ltd

Concrete’s Ability to Resist Chloride Ion

Date: February 2016 to present

Division: Concrete & Constituents

Project: Hong Kong - Zhuhai - Macao Bridge Hong Kong Link Road - Section between Scenic Hill and Hong Kong Boundary Crossing Facilities

Client: China State Construction Engrg (Hong Kong) Ltd