Invention Grant
US5554352A Processed silica as a natural pozzolan for use as a cementitious
component in concrete and concrete products
失效
加工二氧化硅作为天然火山灰，用作混凝土和混凝土产品中的水泥组分
- Patent Title: Processed silica as a natural pozzolan for use as a cementitious component in concrete and concrete products
- Patent Title (中): 加工二氧化硅作为天然火山灰，用作混凝土和混凝土产品中的水泥组分
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Application No.: US438181Application Date: 1995-05-09
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Publication No.: US5554352APublication Date: 1996-09-10
- Inventor: Stephen B. Jaques , Richard D. Stehly , Peter B. Dunning
- Applicant: Stephen B. Jaques , Richard D. Stehly , Peter B. Dunning
- Applicant Address: IA West Des Moines
- Assignee: Construction Material Resources
- Current Assignee: Construction Material Resources
- Current Assignee Address: IA West Des Moines
- Main IPC: C04B7/12
- IPC: C04B7/12 ; C04B18/04 ; C01B33/18 ; C04B14/04 ; C04B22/06
Abstract:
A pozzolan for use in concrete products which is a silica by-product in the acid treatment of silica-containing ore is described. The pozzolan contains over 75% by weight amorphous silica and provides an increase in the early strength of concrete in comparison to traditional pozzolans as well as minimizing alkali-silica reactions due to the presence of less impurities.
Public/Granted literature
- US5071684A Trim attachment for vehicle wheels Public/Granted day:1991-12-10
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