Application & Preparation:
– Dust settler dust spray liquid is highly concentrated with an active solids content of 45-47% and can be diluted simply with the addition of water.
– Fill water truck or water containing tank or flow bin with water first, and then add the required amount of concentrated Dust Settler dust spray liquid which is then pumped into the water truck to produce the desired dilution.
– Use the recirculation pump on the water truck or a separate pump to ensure the water and Dust Settler dust spray liquid are properly mixed before application.
– Should there be no recirculation pump available – the only alternative to ensure proper mixing of the Dust Settler dust spray liquid and water, is to fill the water truck with the required volumes of water and Dust Settler dust spray liquid and then drive the water truck around for a while. The motion of the liquid in the water truck should ensure adequate mixing.
– Depending on the quality of the road, some preparation of the road surface may be required.
– A “soft blade” can be done where the existing road is first sprayed with some water before a light surface blading is done with grader to provide a smooth surface, typically prepared to a 4% camber.
– Roads which have not been treated with Dust Settler dust spray liquid previously, will benefit from an initial application with a more concentrated Dust Settler dust spray liquid solution. This strength is then decreased for follow up treatments.
1. For sandy soils which have a better absorption ability – a 20% solution of Dust Settler dust spray liquid be sprayed onto the road.
2. For clay containing soils which do not allow for rapid absorption – a 10% Dust Settler dust spray liquid must be applied.
– Once mixed with water, Dust Settler dust spray liquid is applied at roughly 2 litre per square meter for clay type soils, and at approximately 2 litres per square meter for sandy types.
– To ensure proper absorption and to prevent excessive run-off, multiple spray passes with a water truck must be performed.
– The spay width of the water truck and the absorption rate will determine how many passes the water truck must perform.
– Typically, the water truck will drive forward at a steady speed for the entire section of the demarcated trail road, completing 1 pass.
– Depending on how well the Dust Settler dust spray liquid was absorbed, the truck can reverse back on the same tracks for the entire demarcated trial section, thereby completing 2 passes.
– If the diluted Dust Settler dust spray liquid absorption is poor and there is excess product visible on the topsoil, either 1) increase the driving speed of the water truck and complete more passes and/or 2) increase Dust Settler dust liquid spray dilution with water.
– If the diluted Dust Settler dust spray liquid is absorbed too quickly into the soil and it is not visibly concentrated enough, either 1) decrease driving speed if the water truck and complete less passes and/or 2) decrease Dust Settler dust spray liquid dilution with water and make a more concentrated mix.
– Once the applicator is satisfied that the optimum moisture content for maximum compaction density is achieved, the final road surface and slope can be formed with the grader and the road can be compacted.
– The nature and volume of the traffic on the trail road, together with the climate will determine the frequency and dosage of Dust Settler dust spray liquid re-application.
– Once the initial treatment with the concentrated Dust Settler dust spray liquid has been completed the road must be monitored for dust fall. Only then can you determine the required frequency of re-application.
1. For sandy soils which have a better absorption ability – a 10% solution if Dust Settler dust spray liquid can be sprayed onto the road.
2. For clay containing soils rapid absorption – a 5% Dust Settler dust spray liquid must be applied.