Cement plant modernization journal now available Volume 5 of the Progress in Cement and Concrete series by Dr. S.N. Ghosh and Kamal Kumar is now available. The latest volume, Modernization and Technology Upgradation in Cement Plants, concentrates on topics such as raw materials, management, technology upgrading, advancements in plant maintenance, advances in pyroprocessing systems, and particulate control.

Earlier volumes in the series include: Cement & Concrete: Science & Technology (in two parts); Energy Conservation and Environmental Control in the Cement Industry (in two parts); Testing and Quality Control in the Cement Industry; and Mineral Admixtures in Cement and Concrete.

Chinese team promotes fly ash in Pakistan A four-member Chinese delegation arrived in Karachi, Pakistan in April for a 10-day visit to promote the use of fly ash from coal-fired power plants. The delegation exchanged technology with the Pakistani counterpart agencies and worked jointly to develop fly ash-composite portland cement on a commercial level.

New limestone-handling system is world's largest A circular stacking and reclaiming system for storage and premixing of limestone built by Kawasaki Heavy Industries Ltd. is said to be the largest of its kind in the world.

With a stockpile diameter of about 125 meters and a capacity of 90,000 cu meters, the system is part of a cement production line that Kawasaki is building for PT Indocement Tunggal Prakarsa, Indonesia. In the middle of the stockpile, which is fully housed under a domed structure, the material is transferred from a conveyor to the system's stacker. The stacker has a 35-meter-long lifting and slewing boom, which can pile the limestone in a circle up to a height of 23.2 meters. The stacker, with a 2.2-meter-wide conveyor running at 2.1 meters per second, can handle 5,000 mtph.

A bridge-type scraper with a handling capacity of 750 mtph has been installed to reclaim the material from the stockpile and feed the cement plant. The scraper, with 2.2-meter-wide blades, moves around the stockpile on a circular track with a diameter of 126 meters.

Krupp Fordertechnik was responsible for the overall planning, procurement, and delivery of the system. The core bulk-handling components were produced partly by the company and partly by local manufacturers in Indonesia.