Concrete & Constituents

Simon H. H. Hung

General Manager - Construction Services

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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

  • 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

  • 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

  • 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)

  • 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
  • Fineness
  • Initial Setting Time
  • Moisture Content
  • Particle Density
  • Soundness
  • Strength Factor
  • Water Requirement
Repair Mortar
  • Trial Mix

  • Making Test Cube

  • Compressive Strength of Test Cubes 50kN-2000kN

  • Flow

Job Reference

Concrete Testing

Date: March 2024 to present

Division: Concrete & Constituents

Project: Redevelopment of Former State Theatre at Junction of King's Road & Tin Chong Street

Client: Hip Seng Builders Ltd.

Aggregate Testing

Date: January 2024 to present

Division: Concrete & Constituents

Project: Raw Materials Testing for Batching Plant

Client: Gammon Construction Ltd.

Concrete Testing

Date: October 2023 to present

Division: Concrete & Constituents

Project: Proposed Residential Development at Area N1 North (Excluding Area N1D) Northern Portion (Phase 19), Discovery Bay North, Lantau DD352 Lot 385 R.P. & the Extension Thereto

Client: Unistress Building Construction Ltd.

Grout Testing

Date: April 2024 to present

Division: Concrete & Constituents

Project: Yuen Long Barrage & Nullah Improvement Scheme (Contract No. DC/2022/03)

Client: Boesan Foundation Engineering Co. Ltd.