GRT PCM: High-Quality Polymer Cement Modifier

Based on the proven use of polymers in specialised structural concrete, Global Road Technology have developed Polymer Cement Modifier (PCM) to be used in combination with traditional cementitious stabilizing agents that are currently used in road construction. The goal was to overcome the shortcomings and improve properties of using cementitious materials alone. GRT’s PCM, not only reduces shrinkage cracking but can also provide increased compressive strength and reduced water demand.

Advantages of GRT polymer modified cement when compared to conventional cement stabilised or treated pavements include:

• Significantly reduced or eliminated shrinkage cracking
• Rapid curing at ambient temperatures
• Higher tensile, flexural, and compressive strengths for the same cement content
• Improved vibration dampening
• Improved adhesion to most surfacings
• Improved long-term durability with respect to freeze and thaw cycles
• Lower permeability to water and aggressive solutions
• Improved chemical resistance

Improved workability i.e. requires less compactive effort for a given depth of compaction and can be compacted in greater single lifts.

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Due to its advanced properties GRT polymer modified cement has numerous potential applications:

• Rehabilitation and strengthening of existing granular pavements;
• Recycling of existing cement stabilized pavements which are exhibiting extensive shrinkage cracking;
• Construction of pavements and/or working platforms in limited or constrained construction times;
• In areas susceptible to high rainfall or inundation;
• Over soft ground conditions where stiff bridging layers are required to compact overlying materials;
• Where temporary trafficking of the pavement may be required during different stages of construction;
• When preferred maximising of use of local materials and for making marginal pavement gravels suitable for purpose;
• Modification or improvement of non-organic subgrade conditions;
• Where construction water availability is limited as GRT polymer modified cement reduces construction water requirements and depending on the water quality may enable the use of non-potable water.