A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Road concrete prepared from waterworks sludge powder and coral fine aggregate
The invention discloses road concrete prepared from waterworks sludge powder and coral fine aggregate. The road concrete comprises the following components in parts by weight: 370-430 parts of cement,36-43 parts of waterworks sludge powder, 570-590 parts of river sand, 36-46 parts of coral fine aggregate, 1120-1170 parts of broken stone, 4-16 parts of quicklime powder, 1-4 parts of gypsum powder,166-183 parts of water and 5-9 parts of water reducing agent, wherein the water-binder ratio is 0.35-0.45. According to the invention, waterworks sludge powder is used as a mineral admixture to replace part of cement, and quicklime powder and gypsum powder are doped to further stimulate and improve the activity of the waterworks sludge powder; and coral fine aggregate is used for replacing part of river sand, aggregate grain composition and the 'micro-pump' effect of the coral aggregate are further improved, the local water-binder ratio of the aggregate surface can be adjusted, and the performance of concrete for roads is improved. The concrete for the road is prepared from the perspective of optimal design of cementing materials and aggregates, so that the performance of the concrete isimproved, the high-added-value green application of sludge powder and coral fine aggregates of waterworks is facilitated, and the comprehensive benefit is high.
本发明公开了一种自来水厂污泥粉和珊瑚细骨料制备的公路用混凝土，其按重量份计，包括以下组分，水泥370‑430份，自来水厂污泥粉36‑43份，河砂570‑590份，珊瑚细骨料36‑46份，碎石1120‑1170份，生石灰粉4‑16份，石膏粉1‑4份，水166‑183份，减水剂5‑9份，水胶比为0.35‑0.45。本发明将自来水厂污泥粉作为矿物掺合料取代部分水泥，为进一步激发提高自来水厂污泥粉活性，同时掺用生石灰粉和石膏粉；将珊瑚细骨料取代部分河砂，进一步改善骨料颗粒级配，珊瑚骨料的“微泵”效应，可调节骨料表面局部水胶比，改善公路用混凝土性能。从胶凝材料和骨料优化设计的角度，制备了公路用混凝土，不仅改善了混凝土性能，也有利于自来水厂污泥粉和珊瑚细骨料的高附加值绿色应用，综合效益高。
Road concrete prepared from waterworks sludge powder and coral fine aggregate
The invention discloses road concrete prepared from waterworks sludge powder and coral fine aggregate. The road concrete comprises the following components in parts by weight: 370-430 parts of cement,36-43 parts of waterworks sludge powder, 570-590 parts of river sand, 36-46 parts of coral fine aggregate, 1120-1170 parts of broken stone, 4-16 parts of quicklime powder, 1-4 parts of gypsum powder,166-183 parts of water and 5-9 parts of water reducing agent, wherein the water-binder ratio is 0.35-0.45. According to the invention, waterworks sludge powder is used as a mineral admixture to replace part of cement, and quicklime powder and gypsum powder are doped to further stimulate and improve the activity of the waterworks sludge powder; and coral fine aggregate is used for replacing part of river sand, aggregate grain composition and the 'micro-pump' effect of the coral aggregate are further improved, the local water-binder ratio of the aggregate surface can be adjusted, and the performance of concrete for roads is improved. The concrete for the road is prepared from the perspective of optimal design of cementing materials and aggregates, so that the performance of the concrete isimproved, the high-added-value green application of sludge powder and coral fine aggregates of waterworks is facilitated, and the comprehensive benefit is high.
本发明公开了一种自来水厂污泥粉和珊瑚细骨料制备的公路用混凝土，其按重量份计，包括以下组分，水泥370‑430份，自来水厂污泥粉36‑43份，河砂570‑590份，珊瑚细骨料36‑46份，碎石1120‑1170份，生石灰粉4‑16份，石膏粉1‑4份，水166‑183份，减水剂5‑9份，水胶比为0.35‑0.45。本发明将自来水厂污泥粉作为矿物掺合料取代部分水泥，为进一步激发提高自来水厂污泥粉活性，同时掺用生石灰粉和石膏粉；将珊瑚细骨料取代部分河砂，进一步改善骨料颗粒级配，珊瑚骨料的“微泵”效应，可调节骨料表面局部水胶比，改善公路用混凝土性能。从胶凝材料和骨料优化设计的角度，制备了公路用混凝土，不仅改善了混凝土性能，也有利于自来水厂污泥粉和珊瑚细骨料的高附加值绿色应用，综合效益高。
Road concrete prepared from waterworks sludge powder and coral fine aggregate
一种自来水厂污泥粉和珊瑚细骨料制备的公路用混凝土
QIAN BIAO (author) / WANG JIANFENG (author) / WANG BIAO (author) / LING JIANG (author) / HE ZHIHAI (author) / WANG DENGDENG (author) / YANG YING (author) / HAN XUDONG (author) / LIANG CHAOFENG (author)
2021-03-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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