Paczyme - Technical Information
Surfactants disperse Soil - then Organics blanket excess Ion Exchange Points
Surfactants disperse Soil - then Organics blanket excess Ion Exchange Points
APPLICATION
To aid in the construction process and for ease of application, Paczyme has been developed as a liquid which is simply added to the water used in water-binding or wet-mixing of materials prior to compaction. Being a chemical catalyst, Paczyme requires thorough mixing throughout the material to be treated and hence the following equipment is necessary to apply, mix and compact the surface:
Motor grader / Rotary hoe / Pulveriser
Water cart
Roller (Vibrating steel drum/Rubber tyred).
SOIL TYPES
Paczyme is suitable for a wide range of soil types possessing relatively high fines contents or plasticity levels. Paczyme is also suitable for soil types possessing reasonable clay content. However, additional stabilisation and bonding through chemical exchange will diminish proportionally to the amount of clay present within the material. Testing of materials to be treated is recommended in order to assess suitability and to fine-tune application rates for optimum results. Paczyme is most effective when working with soils having a PI of 8 or above, and with 15% passing a sieve size of 75 microns. It is advised that soils be tested prior to application to establish whether the soil is suitable for treatment.
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Roads treated with Paczyme are safer and less expensive to maintain. Machinery can be utilised for other projects. Fewer complaints will be received from ratepayers regarding problem roads. Paczyme may be used to increase the maximum dry density (MDD) and unconfined compressive strength (UCS) values of a marginal material to achieve specified standards for a base course and a seal.
BASE COURSE
Paczyme can be used to treat marginal materials to bring them into line with specification standards. Alternatively, where a low cost sealed road is desired, Paczyme can be used to treat in situ or local materials which would be otherwise unsuitable.
Unsealed roads gazetted for future sealing provide an ideal application for Paczyme, as treated base course materials hold their shape whilst providing the benefits of stabilised materials, eliminating the need for full constructions prior to sealing, saving both time and money.
SUB GRADE
Paczyme offers greater leverage in the preparation of subgrade materials. Clay materials benefit through unique stabilising actions of Paczyme, whilst sandy soils become workable, both compacting to much higher densities offering significant improvements to CBR's, typically between 30-50%. Such improvements may then be reflected by decreasing the thickness of basecourse materials in pavement design. The use of in situ and local materials and reductions in thickness of base course materials may be translated into further cost savings in construction and materials.
AIR STRIPS
Paczyme is particularly useful for the treatment of rural or minor airstrips. Airstrips can be economically upgraded using in situ or local materials offering superior performance and stability in wet and dry conditions. Reductions in maintenance and dusting, and greater access in wet conditions save authorities on running costs and represent significant improvements in safety and potential damage to aircraft.
HAUL ROADS
Paczyme provides the mining industry with immediate and long term benefits, particularly in the initial construction of mine infrastructure. Its low cost versus the potential benefits and savings makes its use an attractive proposition to project managers. Haulroads and other surfaces benefit from additional load bearing capacity and stability, particularly important in reducing down time or lost production during wet weather. Reduced maintenance and less dusting provide additional cost savings and environmental benefits, improving operational efficiency and adding to mine safety.
DAMS
Through its actions, Paczyme assists in the compaction of clay soils commonly used in the construction of dams and other related projects. Improvements in the workability and compactability of clay soils via chemical exchange and the use of surfactants result in significantly less permeabilities, making Paczyme ideal for projects requiring low permeabilities such as dams, tailings dams, catchment areas and land fill or refuse sites.
CATTLE TRACKS
Paczyme offers primary producers a low cost affordable alternative in the stabilisation of cattle tracks, feedlots and other areas requiring additional stability. As an example, the stabilisation of dairy cattle tracks using the appropriate materials can assist farmers in reducing the loss of milk production through cattle expending energy in wet and boggy conditions, or through lameness as a result of loose or stony surfaces in dryer conditions. Through careful planning and treatment with Paczyme, farmers can produce a long lasting track which is capable of adding to the efficiency of their operation and well being of precious stock.
LIME AND CEMENT STABILISATION
By incorporating Paczyme into this process, users have been able to reduce lime or cement volumes by up to 50% whilst still maintaining required strength improvements. Paczyme's actions disperse these other agents more effectively throughout the soil, and the addition of sugars within its solution works to retard the setting actions of cement, offering greater working time with materials and eliminating other problems such as shrinkage and cracking.
