PRODUCTION TECHNOLOGY, EQUIPMENT DESIGN AND MANUFACTURING OF DRY MIXED ULTRA-HIGH PERFORMANCE CONCRETES (UHPC) MORTARS
Ultra-high performance concretes (UHPC) were developed principally by the strategy of maximizing the packing and ensuring distributed size distribution of the particulate matter achieving ultra-high strength levels and desired fresh mix workability using locally available materials.Over the past years, many working in this field have developed up to a level where they are ready for application and with compressive strengths from about 150 to 300 N/mm2.To achieve an optimum packing density the processing of ultrafine or nanometer scaled materials required accordingly new way and equipment which are different from the normal used procedures in concrete productions.This paper discusses the UHPC-making procedures, and then detailed in processing equipment of dosing and weighing, dispersing/coating and mixing of ultrafine particulate components according to experimental tests.A new developed concept for dry mixed UHPC production based on modular system is provided.The whole production lines are designed in predefined modules and optimized for the transportation and assembly on site.At the end it shows a practical application in the mineral casting for tool machine beds.
Dry-mixed UHPC Micro dosing Intensive mixer Dispersion Modular system
Bing Cai
JCI(Yangzhou) Intelligent technology Co.,Ltd, Yangzhou, China
国际会议
福州
英文
292-313
2018-11-07（万方平台首次上网日期，不代表论文的发表时间）