Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Steel fiber lightweight aggregate cement stabilized macadam and preparation process thereof
The invention discloses steel fiber lightweight aggregate cement stabilized macadam and a preparation process thereof, relates to the technical field of roadbed materials, and solves the problem that the whole structure of a pavement is damaged due to the fact that shrinkage cracks are easily generated when cement stabilized macadam is used in a pavement base layer and further pavement reflection cracks are formed. The steel fiber lightweight aggregate cement stabilized macadam is prepared from the following components in parts by weight: 100 parts of aggregate, 4.0 to 5.5 parts of cement, 4.0 to 5.5 parts of water and 0.05 to 0.1 part of steel fiber, the aggregate comprises the following components in percentage by weight: 20-28% of 1 # material with the particle size of 20-30 mm, 12-18% of 2 # material with the particle size of 10-20 mm, 25-33% of 3 # material with the particle size of 5-10 mm, 20-26% of 4 # material with the particle size of 0-5 mm and 15-20% of 5 # material with the particle size of 0-5 mm; the 1 # material, the 2 # material, the 3 # material and the 4 # material are limestone aggregates, and the 5 # material is clay ceramsite. The steel fiber lightweight aggregate cement stabilized macadam has good flexural tensile strength and shrinkage resistance, and can effectively slow down dry shrinkage and expansion of shrinkage cracks, so that a road base keeps good stability.
本发明公开了一种钢纤维轻骨料水泥稳定碎石及其制备工艺，涉及路基材料技术领域，解决了水泥稳定碎石在路面基层使用时容易产生干缩裂缝进而形成路面反射裂缝，致使路面整体结构受损的问题。该钢纤维轻骨料水泥稳定碎石，其组分按重量份数计包括：集料100份、水泥4.0‑5.5份和水4.0‑5.5份，钢纤维0.05‑0.1份；集料的组成比例按重量百分数计包括：粒径为20‑30mm的1#料20‑28%、粒径为10‑20mm的2#料12‑18%、粒径为5‑10mm的3#料25‑33%、粒径为0‑5mm的4#料20‑26%、粒径为0‑5mm的5#料15‑20%；1#料、2#料、3#料、4#料为石灰岩集料，5#料为粘土陶粒。该钢纤维轻骨料水泥稳定碎石具有良好的抗弯拉强度、抗收缩性能，可以有效减缓干燥收缩以及收缩裂缝的扩展，使道路基层保持良好稳定性。
Steel fiber lightweight aggregate cement stabilized macadam and preparation process thereof
The invention discloses steel fiber lightweight aggregate cement stabilized macadam and a preparation process thereof, relates to the technical field of roadbed materials, and solves the problem that the whole structure of a pavement is damaged due to the fact that shrinkage cracks are easily generated when cement stabilized macadam is used in a pavement base layer and further pavement reflection cracks are formed. The steel fiber lightweight aggregate cement stabilized macadam is prepared from the following components in parts by weight: 100 parts of aggregate, 4.0 to 5.5 parts of cement, 4.0 to 5.5 parts of water and 0.05 to 0.1 part of steel fiber, the aggregate comprises the following components in percentage by weight: 20-28% of 1 # material with the particle size of 20-30 mm, 12-18% of 2 # material with the particle size of 10-20 mm, 25-33% of 3 # material with the particle size of 5-10 mm, 20-26% of 4 # material with the particle size of 0-5 mm and 15-20% of 5 # material with the particle size of 0-5 mm; the 1 # material, the 2 # material, the 3 # material and the 4 # material are limestone aggregates, and the 5 # material is clay ceramsite. The steel fiber lightweight aggregate cement stabilized macadam has good flexural tensile strength and shrinkage resistance, and can effectively slow down dry shrinkage and expansion of shrinkage cracks, so that a road base keeps good stability.
本发明公开了一种钢纤维轻骨料水泥稳定碎石及其制备工艺，涉及路基材料技术领域，解决了水泥稳定碎石在路面基层使用时容易产生干缩裂缝进而形成路面反射裂缝，致使路面整体结构受损的问题。该钢纤维轻骨料水泥稳定碎石，其组分按重量份数计包括：集料100份、水泥4.0‑5.5份和水4.0‑5.5份，钢纤维0.05‑0.1份；集料的组成比例按重量百分数计包括：粒径为20‑30mm的1#料20‑28%、粒径为10‑20mm的2#料12‑18%、粒径为5‑10mm的3#料25‑33%、粒径为0‑5mm的4#料20‑26%、粒径为0‑5mm的5#料15‑20%；1#料、2#料、3#料、4#料为石灰岩集料，5#料为粘土陶粒。该钢纤维轻骨料水泥稳定碎石具有良好的抗弯拉强度、抗收缩性能，可以有效减缓干燥收缩以及收缩裂缝的扩展，使道路基层保持良好稳定性。
Steel fiber lightweight aggregate cement stabilized macadam and preparation process thereof
一种钢纤维轻骨料水泥稳定碎石及制备工艺
ZHANG YANG (Autor:in) / WANG AOPENG (Autor:in) / MA TAO (Autor:in) / ZHANG JINGLIN (Autor:in) / CHEN CONGLIN (Autor:in)
29.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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