ACTIVA, BLC’s lightweight insulating concrete: documented results for pavement studies and the assessment of building applications.
The “proven product” status covers the evaluated mix and pavement insulation within the scope of MTQ letter GUQ-01788, dated March 19, 2015. Each structure is designed by its engineer.
MTQ letter, March 19, 2015 · PDF · FR →ACTIVA is assessed as an insulating layer that may replace part of the granular foundation, subject to design. The 3.9 MPa compressive result at 28 days describes the tested sample; it is neither a structural concrete rating nor the load capacity of a complete pavement.
Lightweight fill and insulation may be examined for renovation, floors and precasting. Loads, interfaces, moisture, fire performance and acoustic requirements must be checked for the intended assembly. Road recognition does not approve these uses.
The standards identify the methods used in the reports. These are sample results, distinct from design values and contractual project acceptance criteria.
| Characteristic | Measured result | Method / source |
|---|---|---|
| Density, fresh / dry / immersed | 584 / 559 / 626 kg/m³ | CSA A23.2-6C / 11C · R1 |
| Compression, 24 h / 28 days | 2.0 / 3.9 MPa | CSA A23.2-9C · R1 |
| Flexural strength at 28 days | 1.0 MPa | CSA A23.2-8C · R1 |
| Elastic modulus at 28 days | 2.53 GPa | ASTM C469 · R1 |
| Freeze-thaw, 300 cycles | Relative dynamic modulus: 86.5% | ASTM C666, procedure B · R1 |
| Salt scaling, 56 cycles | 0.22 kg/m² | NQ 2621-905 · R1 |
| Dry thermal conductivity | 0.16910 W/(m·K) | ASTM C518-10 · R2 |
| Mass / volume absorption | 12.0% / 3.6% | CSA A23.2-11C / ASTM D2842 B · R1 |
R1: MTQ report BC-14-128 / DB-13-47, 3 February 2015, Table 1, p. 4; batch of 15 July 2014. R2: Exova 14-06-M0326, 30 September 2014, Table 1, p. 3; measured 29 September at a mean 24.02 °C, on a different specimen.
Relative dynamic modulus is not residual compressive strength. The report considers scaling behaviour adequate within a pavement layer without direct contact with deicing salts.
The stated conductivity is for the dry condition. Drainage, in-service moisture, shrinkage and interfaces form part of design. The two absorption figures use different methods.
These measurements come from tests performed in 2014 and reported in 2014–2015. The September 2020 InnovAct Consulting study identifies the studied material as “ACTIVA 9” (p. 8). These historical references do not replace project-specific suitability checks and production quality control.
No verified measured value is available in the records reviewed. The dry value must not be presented as a wet or saturated measurement. The design parameter must be justified for service moisture conditions.
No independently verified result is presented here for these properties. The 0.020% length change during freeze–thaw testing is not a drying-shrinkage measurement. The flexural result is not direct tensile strength.
Identified reports, the MTQ letter and a summary of public results, selected for the intended use in a project-specific dossier.
Review of results, test conditions and missing inputs with the designer, including the study scope and interfaces to address.
Discussion of additional testing, suitability checks and acceptance controls to define for the project. The engineer remains responsible for design.
Public BLC summaries. Original report references are included to support review with your team.
Three road settings, conceptual cross-sections and comparisons from the InnovAct study.
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Selected international studies and reference guides inform design questions while keeping general research distinct from BLC results.
Read the overview