// SERVICE

Quality Control

Lab and on-site quality control for concrete, steel elements and soils.

QUALITY CONTROL PROJECTS

Concrete laboratory

(concrete tests)

  1. Sampling of fresh concrete
  1. Preparation and curing of concrete specimens
  1. Determination of compressive strength of concrete
  1. Workability (slump) test of fresh concrete
  1. Coring of concrete from existing structures
  1. Reinforcement cover thickness measurement, rebar detection and diameter estimation on existing concrete structures
  1. Corrosion assessment of reinforcement in existing concrete structures
  1. Ultrasonic testing of existing structures
  1. Concrete mix design
  1. Slump test

Aggregates laboratory

(aggregates tests)

  1. Sampling of aggregates
  1. Sieve analysis of coarse and fine aggregates
  1. Determination of liquid limit, plastic limit and plasticity index (Atterberg limits) of aggregates
  1. Determination of organic impurities in fine aggregates
  1. Determination of material finer than the 0.075 mm (No. 200) sieve in aggregates by washing
  1. Sand equivalent value test
  1. Determination of maximum dry density and optimum moisture content (Standard Proctor)
  1. Determination of maximum dry density and optimum moisture content (Modified Proctor)
  1. California Bearing Ratio (CBR) determination
  1. Los Angeles abrasion and impact resistance test

On-site inspections

(field inspections)

  1. Concrete testing by (a) Schmidt hammer, (b) ultrasonic pulse velocity, or (c) pull-out testing
  1. Magnetic reinforcement detection
  1. Coring of concrete from existing structures
  1. Reinforcement cover thickness measurement, rebar detection and diameter estimation on existing concrete structures
  1. Corrosion assessment of reinforcement in existing concrete structures
  1. Structural adequacy studies of existing infrastructure