A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Green low-carbon low-viscosity ultra-high performance concrete and preparation method thereof
The invention belongs to the technical field of building materials, and particularly relates to green low-carbon low-viscosity ultra-high performance concrete and a preparation method thereof.The green low-carbon low-viscosity ultra-high performance concrete is prepared from, by mass, 400-500 parts of cement, 90-110 parts of silicon powder, 200-250 parts of modified rice hull ash, 200-250 parts of modified sugarcane leaf ash, 50-100 parts of modified olive residue ash, 14-18 parts of a composite modifier, 750-770 parts of quartz sand and 145-155 parts of quartz powder; 115 to 120 parts of steel fiber, 27 to 28 parts of a water reducing agent and 197 to 199 parts of mixing water. The rice hull ash, the sugarcane leaf ash and the olive residue ash are modified to improve the activity of wastes, and the wastes are further mixed with the composite modifier to reduce the viscosity of the ultra-high performance concrete, so that the ultra-high performance concrete has the characteristics of low cost, high strength, good working performance, high durability, good crack resistance and the like; the problems that the ultra-high performance concrete is high in carbon emission, high in viscosity, single in cementing material and high in waste mixing amount, so that the strength is reduced, and the ultra-high performance concrete is not beneficial to construction due to high viscosity are effectively solved.
本发明属于建筑材料技术领域，尤其涉及一种绿色低碳低粘超高性能混凝土及其制备方法，按质量份计包括以下组分：水泥400‑500份，硅粉90‑110份，改性稻壳灰200‑250份，改性甘蔗叶灰200‑250份，改性橄榄渣灰50‑100份，复合改性剂14‑18份，石英砂750‑770份，石英粉145‑155份，钢纤维115‑120份，减水剂27‑28份，拌合水197‑199份。本发明通过对稻壳灰、甘蔗叶灰以及橄榄渣灰进行改性，提升废弃物的活性，通过进一步与复合改性剂混合降低超高性能混凝土的粘度，从而使得超高性能混凝土具有成本低、强度高、工作性能好、耐久性能高和抗裂性能好等特点，有效解决了超高性能混凝土碳排放高、粘度高、胶凝材料单一、废弃物掺量高引起强度下降、超高性能混凝土粘度高不利于施工等问题。
Green low-carbon low-viscosity ultra-high performance concrete and preparation method thereof
The invention belongs to the technical field of building materials, and particularly relates to green low-carbon low-viscosity ultra-high performance concrete and a preparation method thereof.The green low-carbon low-viscosity ultra-high performance concrete is prepared from, by mass, 400-500 parts of cement, 90-110 parts of silicon powder, 200-250 parts of modified rice hull ash, 200-250 parts of modified sugarcane leaf ash, 50-100 parts of modified olive residue ash, 14-18 parts of a composite modifier, 750-770 parts of quartz sand and 145-155 parts of quartz powder; 115 to 120 parts of steel fiber, 27 to 28 parts of a water reducing agent and 197 to 199 parts of mixing water. The rice hull ash, the sugarcane leaf ash and the olive residue ash are modified to improve the activity of wastes, and the wastes are further mixed with the composite modifier to reduce the viscosity of the ultra-high performance concrete, so that the ultra-high performance concrete has the characteristics of low cost, high strength, good working performance, high durability, good crack resistance and the like; the problems that the ultra-high performance concrete is high in carbon emission, high in viscosity, single in cementing material and high in waste mixing amount, so that the strength is reduced, and the ultra-high performance concrete is not beneficial to construction due to high viscosity are effectively solved.
本发明属于建筑材料技术领域，尤其涉及一种绿色低碳低粘超高性能混凝土及其制备方法，按质量份计包括以下组分：水泥400‑500份，硅粉90‑110份，改性稻壳灰200‑250份，改性甘蔗叶灰200‑250份，改性橄榄渣灰50‑100份，复合改性剂14‑18份，石英砂750‑770份，石英粉145‑155份，钢纤维115‑120份，减水剂27‑28份，拌合水197‑199份。本发明通过对稻壳灰、甘蔗叶灰以及橄榄渣灰进行改性，提升废弃物的活性，通过进一步与复合改性剂混合降低超高性能混凝土的粘度，从而使得超高性能混凝土具有成本低、强度高、工作性能好、耐久性能高和抗裂性能好等特点，有效解决了超高性能混凝土碳排放高、粘度高、胶凝材料单一、废弃物掺量高引起强度下降、超高性能混凝土粘度高不利于施工等问题。
Green low-carbon low-viscosity ultra-high performance concrete and preparation method thereof
一种绿色低碳低粘超高性能混凝土及其制备方法
ZHAO YUN (author) / LIU XIAOMIN (author) / ZHOU JUNLONG (author) / XU YUNLONG (author) / ZHANG QIAN (author) / XUE CHENG (author) / DONG BOJUN (author) / LI YIKANG (author)
2024-02-23
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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