Founded in 1980, the Al-Jazera Concrete Company (JCC), which has operations in Taif, Saudi Arabia, has commissioned a new sand wash plant engineered by wet processing experts CDE as it continues to support the development of the City of Roses project.
Madinat Al Wurood, also known as the City of Roses, is a new suburb located in the north of the Taif governorate. Under the supervision of the Ministry of Housing, the project, part of Saudi Arabia’s Vision 2030, will see the development of over nine million square metres of land, including 112km of road networks and 5,400 residential villas in its first phase alone.
JCC, a key supplier in the realisation of the ambitious project, produces and supplies readymix concrete of varying strengths to largescale public works and infrastructure projects throughout the Kingdom of Saudi Arabia.
With a view to further improving the efficiency of its operation, the compressive strength of its concrete, and to
reduce the environmental footprint associated with concrete production, JCC partnered with CDE to design and engineer a wash plant to efficiently process and enhance the sand equivalent (SE) value of its crusher fines.
“The use of unwashed crusher fines in concrete production can impact upon the end use of the final concrete product, rendering it unsuitable for higher value construction applications,” said CDE’s Regional Manager for the Middle East & Africa, Ruchin Garg. “It can also increase the requirement for cement in the concrete mix in order to achieve the desired compressive strength, a costly process both commercially and environmentally.”
“Concrete is, by its very nature, a highly taxing industry on the environment. From cement manufacturing to water consumption, the process leaves a considerable environmental footprint which we’re committed addressing,” said JCC’s Taif Area Manager, Abdelmajeed Al Kurdi.
CDE’s significant presence in Saudi Arabia was major factor in the decision to partner with the washing experts, Al Kurdi added.
“Washing materials is an entirely new direction for our company and so we sought more than technology, more than a supplier. We sought a partner, and given CDE’s presence and solid reputation in the local market, we trusted the quality of its equipment and the expertise of its team.”
With a view to increasing the SE value of JCC’s feed material, CDE proposed a wash plant set up comprising two of its patented EvoWashTM sand classification and dewatering plants coupled with its AquaCycleTM thickener for water management.
A compact, modular sand washing system, CDE’s EvoWash washes and deslimes the crusher fines by ensuring low moisture product with the help of its high frequency dewatering screen. The hydrocyclone technology provides unrivalled control of silt cut points and eliminates the loss of quality fines.
Working in tandem, CDE’s AquaCycle offers an alternative to water extraction from natural sources and the costly process of pumping water to the plant, especially in arid regions where water resources are not readily available. It significantly reduces water consumption by ensuring up to 90% of process water is recycled for immediate recirculation around the plant.
Processing up to 300 tonnes per hour (tph) of material, the CDE solution is producing 200tph of 0-5mm sand with a final SE value of 88%, up from around 50% prior to commissioning and significantly exceeding acceptance criteria of 70%.
“Already, the integration of our first CDE wash plant into the operation has transformed our business and given us a competitive advantage in the local market. We’re able to exceed expectations and that will position us well for future success as we tender for high value projects of major public interest,” added Al Kurdi.