Releasing Quartz Crystals from Sandstone
Natural Sand is in great demand as the key ingredient for concrete and asphalt. Traditionally it has been derived from natural rivers, streams, estuaries or dune deposits. After centuries of use, sand around the world is now in limited supply.
Rock Trade Industries has discovered the process to release quartz crystals, that is natural sand, from sandstone through advanced manufacturing technologies and processes.
Petrographic tests have determined this material to be clean, medium, grained natural lithic quartzose sand. It is classed as a premium product and is in high demand by the asphalt and concrete industries.
Queensland’s Department of Transport and Main Roads has approved this product as a natural sand and has granted approval for its use in concrete and asphalt as a 2.36mm fine aggregate.
Road Base V2.36
The results of an intense research and development program, and the implementing of advanced crushing technology, has enabled Rock Trade Industries to engineer road bases to rigid specifications and quality standards. Road base consists of course, and fine aggregate particles, shape and hardness of the aggregate is critical to the production of high quality hard wearing road surface.
Also important is the type of fines material used as a binder. Rock Trade Industries produce individual finished products that meet the specification for grading, strength and shape, plasticity index, lineal shrinkage, fines ratio, durability and workability. When blended at the appropriate percentages, it produces a high quality, easily worked road base for various applications. Moisture content is also critical to the successful compaction of the material and all road base material is supplied close to optimum moisture level reducing the requirement of water to be transported to site. Through this process Rock Trade Industries have successfully developed specialised road base material for unsealed roads that when laid correctly, provides a well bound durable non-slip surface, with reduced dusting, resulting in a very long-lasting road surface.
Future collaboration with the University of Queensland Agricultural Faculty, Racing Queensland, and Rock Trade Industries will seek to create a new racing surface sand, re-engineered to minimise injury for horses and their riders. Significant gains have already been made in the development of blending techniques to produce a revolutionary blend of materials designed specifically for equestrian eventing. Currently three equestrian arenas are testing the impacts of this innovative product and its value to a multibillion dollar global industry.