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A platform for research: civil engineering, architecture and urbanism
Process for preparing cement stabilized macadam based on recycled aggregate
The invention relates to a process for preparing cement stabilized macadam based on recycled aggregate. The process comprises the following steps: recycling waste cement concrete blocks; carrying out crushing treatment on the recycled waste cement concrete blocks by using an impact crusher to prepare regenerated aggregate; carrying out screening treatment on the regenerated aggregate to obtain the regenerated aggregate with the particle size of 4.75-31.5 mm; carrying out strengthening treatment on the regenerated aggregate; spraying organic silicon resin on the surface of the reinforced aggregate to obtain modified regenerated aggregate; then mixing with the natural aggregate, adding the fly ash, the polypropylene fiber material, the cement and the water, and uniformly stirring and dispersing to obtain the product. According to the invention, the regenerated aggregate is abraded and sprayed with the organic silicon resin, and is compounded with the fly ash, the polypropylene fiber and the cement to prepare the regenerated cement stabilized macadam, so that the performances in the aspects of compressive strength, splitting strength, drying shrinkage resistance, fatigue life and the like are greatly improved; the utilization of solid resources is improved, and the influence on the environment is reduced.
本案涉及一种基于再生集料制备水泥稳定碎石的工艺，包括如下步骤：回收废弃水泥混凝土块；使用反击式破碎机对回收的废弃水泥混凝土块进行破碎处理，制得再生集料；将再生集料进行筛分处理，获得粒径4.75‑31.5mm的再生集料；对再生集料进行强化处理；对经强化处理的集料进行表面喷涂有机硅树脂，得改性再生集料；之后与天然集料进行混合，加入粉煤灰、聚丙烯纤维材料、水泥以及水，拌和均匀分散，即得。本发明对再生集料进行磨耗和喷涂有机硅树脂，通过与粉煤灰、聚丙烯纤维以及水泥复合，制备出再生水泥稳定碎石，极大提升了抗压强度、劈裂强度、抗干燥收缩和疲劳寿命等方面的性能；提高固体资源的利用，减少对环境的影响。
Process for preparing cement stabilized macadam based on recycled aggregate
The invention relates to a process for preparing cement stabilized macadam based on recycled aggregate. The process comprises the following steps: recycling waste cement concrete blocks; carrying out crushing treatment on the recycled waste cement concrete blocks by using an impact crusher to prepare regenerated aggregate; carrying out screening treatment on the regenerated aggregate to obtain the regenerated aggregate with the particle size of 4.75-31.5 mm; carrying out strengthening treatment on the regenerated aggregate; spraying organic silicon resin on the surface of the reinforced aggregate to obtain modified regenerated aggregate; then mixing with the natural aggregate, adding the fly ash, the polypropylene fiber material, the cement and the water, and uniformly stirring and dispersing to obtain the product. According to the invention, the regenerated aggregate is abraded and sprayed with the organic silicon resin, and is compounded with the fly ash, the polypropylene fiber and the cement to prepare the regenerated cement stabilized macadam, so that the performances in the aspects of compressive strength, splitting strength, drying shrinkage resistance, fatigue life and the like are greatly improved; the utilization of solid resources is improved, and the influence on the environment is reduced.
本案涉及一种基于再生集料制备水泥稳定碎石的工艺，包括如下步骤：回收废弃水泥混凝土块；使用反击式破碎机对回收的废弃水泥混凝土块进行破碎处理，制得再生集料；将再生集料进行筛分处理，获得粒径4.75‑31.5mm的再生集料；对再生集料进行强化处理；对经强化处理的集料进行表面喷涂有机硅树脂，得改性再生集料；之后与天然集料进行混合，加入粉煤灰、聚丙烯纤维材料、水泥以及水，拌和均匀分散，即得。本发明对再生集料进行磨耗和喷涂有机硅树脂，通过与粉煤灰、聚丙烯纤维以及水泥复合，制备出再生水泥稳定碎石，极大提升了抗压强度、劈裂强度、抗干燥收缩和疲劳寿命等方面的性能；提高固体资源的利用，减少对环境的影响。
Process for preparing cement stabilized macadam based on recycled aggregate
一种基于再生集料制备水泥稳定碎石的工艺
ZHAO BANGLIN (author)
2022-10-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Experimental Study of Recycled Concrete Aggregate for Cement-Stabilized Macadam
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