
基本信息:
- 专利标题: HIGH EARLY STRENGTH CEMENT-SCM BLENDS
- 专利标题(中):高强度水泥 - 水泥混凝土
- 申请号:US14305954 申请日:2014-06-16
- 公开(公告)号:US20140299023A1 公开(公告)日:2014-10-09
- 发明人: John M. Guynn , Andrew S. Hansen
- 申请人: Roman Cement, LLC
- 主分类号: C04B7/02
- IPC分类号: C04B7/02 ; C04B28/04
摘要:
Hydraulic cements, such as Portland cements and other cements that include substantial quantities of tricalcium silicate (C3S), dicalcium silicate (C2S), tricalcium aluminate (C3A), and/or tetracalcalcium alumino-ferrite (C4AF), are particle size optimized to have increased reactivity compared to cements of similar chemistry and/or decreased water demand compared to cements of similar fineness. Increasing hydraulic cement reactivity increases early strength development and release of reactive calcium hydroxide, both of which enhance SCM replacement and 1-28 day strengths compared to blends of conventional Portland cement and one or more SCMs, such as coal ash, slag or natural pozzolan. Decreasing the water demand can improve strength by decreasing the water-to-cement ratio for a given workability. The narrow PSD cements are well suited for making blended cements, including binary, ternary and quaternary blends.
摘要(中):
包括大量硅酸三钙(C3S),硅酸二钙(C2S),铝酸三钙(C3A)和/或四钙铝铁氧体(C4AF)等水泥水泥,其中包括大量硅酸钙 与类似化学物质的水泥相比,和相似细度的水泥相比,反应性增加。 与常规波特兰水泥与一种或多种SCM(如煤灰,矿渣或天然火山灰)的混合物相比,增加水硬性水泥反应性增加了反应性氢氧化钙的早期强度开发和释放,两者都增强了SCM替代和1-28天的强度。 降低用水需求可以通过降低给水可加工性的水与水泥比来提高强度。 狭窄的PSD水泥非常适合制造混合水泥,包括二元,三元和四元混合。
公开/授权文献:
- US09272953B2 High early strength cement-SCM blends 公开/授权日:2016-03-01
IPC结构图谱:
C | 化学;冶金 |
--C04 | 水泥;混凝土;人造石;陶瓷;耐火材料 |
----C04B | 石灰;氧化镁;矿渣;水泥;其组合物,例如砂浆、混凝土或类似的建筑材料;人造石;陶瓷;耐火材料;天然石的处理 |
------C04B7/00 | 水硬性水泥 |
--------C04B7/02 | .硅酸盐水泥 |