• It is a water-soluble soil stabilizer chemical used in construction of Probase Roads utilising in-situ materials.
  
• It is a 100% organic and is derived from combined organic sulphur and buffered acids that are combined as bi-sulphates.
  
• It is non toxic and poses no threat to groundwater supplies or flora and fauna.
  
• It does not consume in its function but continues and perpetuates its action in the presence of water.
  
• It reduces the plastic index of the soil and improves its CBR ratings.
  
• It is an economical construction methods especially for rural and estate roads.

• Preparation
  Area to be treated should be smoothened out and lightly compacted. If there are any low spots, holes or humps, it's best to correct them before proceeding.
  
• Filling the water tanker
  Be sure the water tanker is at least partially full before adding any Probase from the drum. If you put Probase directly into an empty tanker, it can cause the spray bar valves to stick. (You also need to be careful when taking Probase from the drum, use of a hand cranked transfer pump is not recommended).
  
• Determining Amount of Product Required
  

1. Multiply the area (length x width) by the depth of the area to be treated.
   (L) ______ metres x (W)______ metres x (D) _______ metres= ______ cubic metres.
   
2. Multiply the total number of cubic metres to be treated by 0.35 to obtain the number of litres of product needed:
   __________ cubic metres x 0.35 = _____________ litres of TX-55 required.
   
   

1. Example 300 metres long x 6 metres wide x 0.15 metres (15 centimetres) deep
   (L) 300 metres x (D) 6 metres x (D) 0.15 metres = 270 cubic metres.
   
2. 270 cubic metres x 0.35 = 95 litres of TX-55 required.
   

• Dilution Rate
  There are two recommended methods of determining the dilution rate.

1. If the exact amount of water needed to obtain optimum moisture content is known, add the required amount of TX-55 to the water.

2. In the following situation the "Rule of the Thumb" is considered reliable :-
   1) Dry soil conditions : 100-110/1(100 to 110 parts water to 1 part Probase)
   2) Normal soil conditions : 80/1 (80 parts water to 1 part Probase)
   3) Wet soil conditions : 40/60 (40 to 60 parts water to 1 part Probase)
   
   Note : When taking Probase from the drum and pouring it into the tanker, care should be taken not to splash the concentrate to the eyes. The concentrate is harmless. Non acidic or toxic, but it is sticky and if it gets into the eyes, an eyewash/flush may be required (goggles are recommended). After it is diluted, there is absolutely no caution needed.
   

• Installation/Application
  Top Layer
  Begin spraying the area to be treated by following the water tanker with the grader, using the scarifier to loosen the soil to a depth of about 10 centimetres (4 inches)
  
  After the soil is loosened continue spraying the material with the Probase solution, with the grader going back and forth to mix and totally break down any lumps and thoroughly mix the solution into the soil. You need to wet the material to slightly more than optimum moisture content. (Optimum moisture content is when the moistened/mixed material can easily be formed into a ball and compacted by hand. But, at this stage, you need to get the material slightly wetter.)
  
  Blade the thoroughly mixed material into a windrow at the sides, leaving enough space to scarify and mix the bottom layer.
  
  Bottom Layer
  Scarify, spray and mix another 10 centimetres (4 inches) of soil, spraying and blading back and forth until the soil is thoroughly mixed and wetted to optimum moisture content.
  
  Grade and shape the bottom layer material and lightly compact (one pass without vibrator and one pass with vibrator).
  
  Blade the treated top layer material onto the bottom layer, continue blading to shape until the material is reduced to optimum moisture content. (Reserve a small amount of the treated material to one side for finishing).
  
  Compacting and Finish-Grading
  Begin compacting without vibrating (one pass). Use the reserved material to fill any low spots or "holes". Continue compacting with full vibratory action until the materials are very tight (usually at least two passes). But do not over-compact.
  
  Second Day
  Usually, after 9 or 10am the next day, the treated area can be vibratory compacted again for an hour or so. If the material appears to be drying too quickly, spray the surface lightly with plain water. (Be sure the water does not contain any Probase product as it can cause the compactor drum to stick)

NOTES :
REVERSE DIRECTION COMPACTING - For the first passes (until the material is fairly tight) try to compact with the machine running in reverse (with drum following the rubber tyres). The operators will not be too happy about this but it generally gets better results and it's easy to walk behind the drum. During these first passes to ensure there is no material sticking to the drum.

STICKING MATERIAL ON THE FIRST PASS - Watch for any material sticking to the drum. If this occurs, pull the compactor off for a while. The treated material dries pretty quickly, easily twice as fast as wet material without Probase.

RAIN - If during the application, rain is about to fall, lightly pack the material until the rain passes. Unless it's really heavy, there should be no loss of any Probase to leeching or washing out. After the rain passes the area can be worked without the equipment sliding around. Just loosen the lightly packed material again and continue where you left off.

REWORK - Probase treated material is pretty much recyclable. If you have to open up a treated area, just loosen the material thoroughly and moisten to optimum moisture content (again, with just plain water unless there is some possibility of the presence of foreign, untreated material - then a little Probase should be added) and re-compact.

TRAFFIC - There is usually no need to interrupt traffic during the operation if it needs be done then once the area is tightly compacted, normal traffic can be resumed.

EXCEPTION : Heavily overloaded single axle trucks can leave some imprints during the first day or so but so long as the vehicles aren't overloaded there should be no problem. In fact, heavy loads and vehicles help with the compaction.

The Probase treated roads should show an increase of 300 percent in terms of CBR and the plasticity index will reduce by fifty percent, strong enough for almost any traffic.

Description
Water based Liquid Emulsified Asphalt Sealant.

Application
Economical and effective means of sealing Probase stabilised road bases, especially for low budget rural and estate roads

Equipment Required
Emulsion sprayer or gravity feed tanker.

Safety & Special Handling
Not required

Coverage
Typically, one drum of T3-55 is enough to seal more than 150 square metres of Probase stabilised base.

Availability
Normal factory stock - in standard US 55 gallon steel drum (200 Litre drum)

Shipping Information
Gross Drum Weight - 218 kilograms (480 lbs)
Ships in non-regulated (cheapest) category

For more details, please visit http://www.probase.com.my