A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a high-strength composite filler for concrete and a preparation method and application thereof. The high-strength composite filler is prepared from the following raw materialsin parts by weight: 100-200 parts of fly ash, 300-500 parts of waste glass powder, 40-90 parts of high-calcium stone, 20-40 parts of sodium sulfide and 50-150 parts of glass fiber. Sodium hydroxide can corrode the surface of glass, improves the surface roughness of glass particles, improves the bonding strength of the glass particles and cement, facilitates slow secondary hydration of the glass particles and reduces concrete strength reduction caused by a smooth surface. The submicron glass powder and fly ash have strong pozzolanic activity, the concrete strength can be rapidly improved, and the sodium sulfate can significantly improve the secondary hydration speed of the glass powder. Cross-linkable materials such as glass fibers and superfine steel microwires are added, so that the strength of the concrete cured at the initial stage is remarkably improved, the curing period of the concrete is shortened, and the concrete reaches a high-strength state as soon as possible to be put intouse.
本发明公开了一种用于混凝土的高强度复合填料及其制备方法和应用，由如下重量份的原料制成：100～200份粉煤灰、300～500份废玻璃粉、40～90份高钙石、20～40份硫化钠，50～150份玻璃纤维；本发明中氢氧化钠可以腐蚀玻璃表面，提高玻璃颗粒表面粗糙度，提高玻璃颗粒与水泥的胶结强度，并有利于玻璃颗粒的缓慢二次水化，减少由于光滑表面导致的混凝土强度下降。亚微米级别的玻璃粉末及粉煤灰均有较强的火山灰活性，可快速提高混凝土强度，硫酸钠可显著提高玻璃粉二次水化的速度。加入玻璃纤维，特细钢微丝等可交联材料，显著提高初期养护的混凝土强度，使得混凝土的养护周期缩短，尽快达到高强度状态以便投入使用。
The invention discloses a high-strength composite filler for concrete and a preparation method and application thereof. The high-strength composite filler is prepared from the following raw materialsin parts by weight: 100-200 parts of fly ash, 300-500 parts of waste glass powder, 40-90 parts of high-calcium stone, 20-40 parts of sodium sulfide and 50-150 parts of glass fiber. Sodium hydroxide can corrode the surface of glass, improves the surface roughness of glass particles, improves the bonding strength of the glass particles and cement, facilitates slow secondary hydration of the glass particles and reduces concrete strength reduction caused by a smooth surface. The submicron glass powder and fly ash have strong pozzolanic activity, the concrete strength can be rapidly improved, and the sodium sulfate can significantly improve the secondary hydration speed of the glass powder. Cross-linkable materials such as glass fibers and superfine steel microwires are added, so that the strength of the concrete cured at the initial stage is remarkably improved, the curing period of the concrete is shortened, and the concrete reaches a high-strength state as soon as possible to be put intouse.
本发明公开了一种用于混凝土的高强度复合填料及其制备方法和应用，由如下重量份的原料制成：100～200份粉煤灰、300～500份废玻璃粉、40～90份高钙石、20～40份硫化钠，50～150份玻璃纤维；本发明中氢氧化钠可以腐蚀玻璃表面，提高玻璃颗粒表面粗糙度，提高玻璃颗粒与水泥的胶结强度，并有利于玻璃颗粒的缓慢二次水化，减少由于光滑表面导致的混凝土强度下降。亚微米级别的玻璃粉末及粉煤灰均有较强的火山灰活性，可快速提高混凝土强度，硫酸钠可显著提高玻璃粉二次水化的速度。加入玻璃纤维，特细钢微丝等可交联材料，显著提高初期养护的混凝土强度，使得混凝土的养护周期缩短，尽快达到高强度状态以便投入使用。
High-strength composite filler for concrete and preparation method and application thereof
一种用于混凝土的高强度复合填料及其制备方法和应用
ZHANG WEI (author)
2020-07-14
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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