INSEE Rapidflow

INSEE RAPIDFLOW is an Ordinary Portland Cement (OPC) especially designed to produce unmatched early compressive strength, ideal for large-scale infrastructure projects such as bridges, roads, and high-rise buildings.

INSEE RAPIDFLOW addresses the demand for accelerated speed of construction with today’s rapid pace of development, reducing construction as well as project lifecycle time with rapid strength development. This also makes INSEE RAPIDFLOW ideal for precast concrete elements for high-rise structures, ensuring early occupancy and early returns.

Fact File

Type :Ordinary Portland Cement
Sri Lankan Standard :SLS 107:2015
Strength Class :42.5R
British Standard:BS EN 197-1:2011 CEM I – 42.5R

Compressive Strength (2 days)≥ 20 N/mm2≥ 30 N/mm2
Compressive Strength (28 days)42.5 – 62.5 N/mm2>55 N/mm2
Setting Time≥ 60 minutes120 – 140 mm
FinenessNot Specified in Standard330 – 340 m2/kg
Soundness< 10 mm< 1 mm
Relative DensityNot specified in standard~ 3.13
SO3≤ 4.0 %< 3.0%
Chloride≤ 0.10 %< 0.08%
LOI≤ 5.0 %< 4.0%
IR≤ 5.0 %< 3.0%
An average of internal test results.

INSEE RAPIDFLOW is compatible with:

  • Chemical Admixtures complying with BS EN 934-1:2008 and ASTM C494
  • Fly Ash complying with BS EN 450
  • Ground Granulated Blast Furnace Slag (GGBS) complying with BS EN 15167-1:2006
  • Silica Fume complying with BS EN 13263-1:2005+A1:2009
  • Manufactured Sand (M-Sand) complying with BS EN 12620:2013
  • Natural Sand, Quarry Sand and Offshore Sand complying with BS EN 12620:2013

INSEE RAPIDFLOW is especially designed for civil engineering and structural concrete applications,
which include:

  • Fast track construction projects that require stripping / striking of form work
  • Pre-stressed and post-stressed concrete products
  • Day-one strength applications
  • Precision grouts, repairs and formulated cement products

Features and Benefits

Eg: Slab construction with G30 concrete with an expected slab cycle of 7 days for 30 nos. of slabs. Formwork removal is carried out after 3 days, once the required strength of the concrete is achieved. Early strength development of INSEE RapidFlow produces the required strength within 2 days. This results in a 30-day reduction of the total project lifecycle, and the elimination of related direct and indirect labor and operational costs.

High Early Strength Concrete
Reduced Construction Cycles

The high early strength development of INSEE RAPIDFLOW contributes to significantly reducing the overall construction cycle of projects, and thereby also decreasing project cost.

Its high quality clinker allows for rapid setting times and high early strength development in concrete. This property is beneficial for time-critical constructions as well as for precast concrete elements.

A wide range of tests and equipment to assess fresh and hardened concrete properties

  • Specified Tests for Self-Compacting Concrete
    • Flow Table Test – BS EN 12350-5:2019
    • J-Ring Test – BS EN 12350-12:2010
    • V Funnel – BS EN 12350-09:2010
    • L Box – EN 12350
  • Slump test – BS EN 12350-2 and ASTM C143
  • Density of fresh concrete – ASTM C138
  • Air content in fresh concrete – ASTM 231
  • Concrete bleeding – ASTM 232
  • Concrete setting time – ASTM C403
  • Compressive Strength up to 180 MPa – Testing Machines (3000 & 4000KN) – Double the existing strength standards in Sri Lanka
  • NDT for Compressive Strength up to 130 MPa – Impact Rebound Hammers – Double the existing equipment capacity in Sri Lanka
  • Flexural Strength – ASTM C78 / BS EN 12390-5-2019
  • Splitting Resistance – ASTM C-496 / EN 12390-6 / EN 1338
  • Concrete Specimen Grinding Machine – BS EN 12390-2 2019/ ASTM D4543

A wide range of tests and equipment to assess and ensure your aggregate grade meets the demand and requirement of your concrete.

  • INSEE Measurement Tools
    • INSEE Blue™ – Assess clay content as key quality indicator for manufactured and natural pit sand
    • INSEE Shape™ – Assess the grain shape particles as key quality indicator for manufactured sand
  • Coarse and fine aggregate particles size distribution – ASTM C136 / C136M – 19 & BS EN 933-1
  • Relative Density and Absorption of Coarse Aggregates – ASTM C127-12
  • Aggregate Impact Value (AIV) – BS EN 1097-2:2010
  • Flakiness Index & Elongation Index – BS EN 933-3:2012
  • Soundness Test of Aggregates – SN EN 206-1
  • Aggregate Crushing Value (ACV)- BS EN 1097-2:2010
  • Los Angeles Abrasion Test – ASTM C 131-06

A range of tests to assess properties of fresh concrete that go beyond the traditional ‘slump test’, improving the quality and consistency of concrete.

  • INSEE Measurement Tools
    • INSEE Flow™
    • INSEE Heat™
    • INSEE Color™
    • INSEE ConTemp™
  • ICAR Rheometer for paste, mortar & concrete toassess pumpability, flow resistance, thickness, slump retention, admixtures compatibility
  • Grout for Pre-Stressing Tendons – BS EN 445 2007
  • Electrical Conductivity for paste & mortar
  • Cementometer™ latest microwave technology for the determination of fresh concrete water to cement w/c ratio

Advanced testing with durability indicators to optimize structural performance and extend the service life of concrete structures exposed to severe environments.

  • Rapid Chloride Permeability Test - ASTM C1202
  • Bulk Electrical Conductivity of Hardened Concrete - ASTM C1760-12
  • Specific Resistivity - RILEM TC154 - AASHTO T358
  • Concrete Carbonation - Swiss SIA 262-1/1 CEN/TS 12390-12
  • O2 Permeability - RILEM 116-PCD CEMBUREAU Method
  • Capillary Water Absorption/ Sorptivity - Swiss SIA 262/1:2013 ASTM C1585-04
  • Initial Surface Absorption (ISAT) - BS 1881 Part 5
  • Water Permeability - EN 12390-8:2000
  • Concrete Sulphate Resistance - SIA 262-1/A