Ideal protocol for preparing small laboratory AggreBind samples
Mold size 75mm X 75mm X 75mm
Ideal soil mix
20% +- 2.00mm
35% +- 1.5mm
35% – 0.075mm
The above must be mixed together thoroughly before the AggreBind/water mixture is added.
The AggreBind and water must be mixed together before being added to the soil mixture. This ensures that all the particle surfaces are treated with AggreBind.
Vibration compaction is preferred as this reduces the risk of air pockets. Round moulds are also preferred for laboratory testing.
The Use of River Sand
Use of River Sand in Road Construction and the manufacture of Bricks/Blocks
Basically river sand is created from the erosion of rocks that enter the river system.
These rocks are gradually eroded and the rock particles are changed into a format that can be smooth and round.
These factors must be considered when using river sand as a structural material.
Round particles can rotate and move if the voids between the particles are not filled to provide the required structural compressive strength. If the voids between those particles are not filled then a structural layer cannot be achieved.
River sand can be a very difficult material to stabilize and should only be used in conjunction with 35% by weight of fine material ( passing through a 0.063 sieve) or with angular aggregate.
Basic principle of soil stabilizing is to use interlocking angular aggregates that interlock when compacted with the voids filled with AggreBind treated fines.
AggreBind coats the surfaces of the angular aggregates and the fines, and the cross-linking polymer binds them together.
The compressive strength is achieved by increasing the layer density with compaction and the tensile strength is increased by the cross-linking of the polymer.
And, why we would Surface Seal.
Surface sealing reduces the ingress of water into the treated layer and significantly reduces the risk of structural damage and failure.
Potholes in roads are generally caused in two ways:
- Ingress of water that washes away the fines and this causes the interlocking to fail.
- Ingress of water that then expands when frozen and this causes the interlocking to fail.
More information on soil stabilization AggreBind, click on the links below:
Easy Way To Calculate Current Moisture Content And Optimum Moisture Content of Soils And Sand
Pre-Installation Evaluation Form
Specifications of AggreBind Polymer
Soil Stabilizing Analysis by Weight of Soil Treated and soil Triangle
Material Safety Data Sheet AggreBind
Construction Materials Evaluation
AggreBind Project Analysis
Assessment and Application Guidelines
Check List for Installation of AggreBind
Procedures AggreBind Quality and Quantity Evaluation