Concrete

A leading consultant in concrete technology, DBA Engineering Ltd offers services ranging from evaluation of deterioration and damage to buildings, parking structures, highways, airfields, bridges, marine works, dams and tunnels to complete material controls and quality assurance on new constructions projects.

Our expertise includes design, specification, application and control of approved special cement systems needed during accelerated construction programs.  Safe concrete-stripping strength requirements must be met through advanced curing processes and in varying temperatures.

We provide field and laboratory testing for all types of construction, our lab is certified in all aspects of concrete and aggregate testing (CSA-category II).

Field Testing of Plastic Concrete

* CSA A23.2-1C Sampling Plastic Concrete
* CSA A23.2-3C Making and Curing Concrete Compression and Flexural Strength Specimens
* CSA A23.2-4C Air Content of Plastic Concrete by the Pressure Method
* CSA A23.2-5C Slump of Concrete
* Mortar and grout test
* LOK testing
* Bond testing
* Ready mix plant inspection

Lab Testing

* LS-407 Compressive Strength of Moulded Concrete Cylinders
* CSA A23.2-9C Compressive Strength of Cylindrical Concrete Specimens
* LS-426 Testing Compressive Strength of High Performance Concrete Cylinders
* CSA A23.2-8C Flexural Strength of Concrete Using Simple Beam with Third-Point Loading
* CSA A23.2-14C Obtaining and Testing Drilled Cores for Compressive Strength Testing
* CSA A23.2-10C Accelerating the Cure of Concrete Cylinders and Determining their Compressive Strength  
* ASTM C457 Microscopical Determination of Parameters of the Air-Void System in Hardened Concrete
* ASTM C1202 Electrical Indication of Concrete’s Ability to Resist Chloride Ion Penetration (Rapid Chloride Permeability)
* LS-413 Non-Volatile Content of Chemical Admixtures, Latex Admixtures and Curing Compounds
* LS-414 Relative Density of Chemical Admixtures, Air Entraining Admixtures, Latex Admixtures and Curing Compounds
* LS-415 pH of Aqueous Solutions by Glass Electrode
* CSA A23.2-1B Testing of Flowable Grout (viscosity, bleeding, expansion and compressive strength)
* LS-293 Correlating Profile Measuring Devices and Conducting Surface Smoothness

Measurements

* ASTM C666 Rapid freeze thaw testing (D line cracking)
* Petrographic analysis
* Evaluation of concrete aggregates, supplementary minerals and cement
* Mix design for concrete, grout, shotcrete and mortars