行业资讯
水稳碎石强度形成及对材料的技术要求
来源：/ 日期：2022-10-07
随着高等级公路的发展及公路工程建筑材料的不断进步，作为半刚性路面基层的水泥稳定碎石越来越被广泛应用，作为承载层的水硬性结合料显的尤为重要。下面济南水稳料生产厂家来讲讲水稳碎石强度形成及对材料的技术要求。
With the development of high-grade highways and the continuous progress of highway engineering construction materials, cement stabilized macadam, as the semi-rigid pavement base, is more and more widely used. As the hydraulic binder of the bearing layer, it is particularly important. Next, Jinan water stabilized macadam manufacturer will talk about the strength formation of water stabilized macadam and the technical requirements for materials.
水稳碎石强度形成：
Formation of water stabilized macadam strength:
水泥稳定碎石是以级配碎石作骨料，采用一定数量的胶凝材料和足够的灰浆体积填充空隙,形成板体后具有较高的强度、水稳定性、抗渗性和抗冻性。
Cement stabilized macadam is made of graded macadam as aggregate, and a certain amount of cementitious material and sufficient mortar volume are used to fill the gap. After forming the slab, it has high strength, water stability, impermeability and frost resistance.
水稳碎石作为水泥稳定土中的一种被广泛应用有着其显著的优点。良好的粗细集料搭配使水稳碎石成为一种骨架密实型结构。
As a kind of cement stabilized soil, water stabilized macadam is widely used with its remarkable advantages. The good mix of coarse and fine aggregates makes the water stabilized macadam a skeleton dense structure.
水稳碎石对材料的技术要求：
Technical requirements for materials of water stabilized macadam:
水泥剂量是影响强度的关键因素，水泥剂量不等，其强度从几兆帕大到几十兆帕。作为无机结合料粒料，在满足强度条件下合理的水泥剂量不仅对经济效益而且对工程都有好处。水泥用量一般为混合料的3%~7%。
The cement dosage is the key factor affecting the strength. The cement dosage varies from several MPa to tens of MPa. As an inorganic binder aggregate, the reasonable cement dosage under the condition of meeting the strength is not only beneficial to the economic benefit but also to the project. The cement consumption is generally 3%~7% of the mixture.
水稳定性主要是研究水稳碎石在饱和水不利情况下，判断其有足够的强度。在7天无侧限强度试验中已经作了检验。基层材料中石灰粉煤灰粒料，水泥粒料水稳定性好。
Water stability is mainly to study the water stabilized macadam under the unfavorable condition of saturated water and judge that it has sufficient strength. It has been checked in the 7-day unconfined strength test. Lime fly ash granular material and cement granular material in the base material have good water stability.
抗冲刷能力由于表层水的渗入，基层表面积水容易产生冲刷，造成路面病害，如唧浆，坑槽等。对于同一种稳定粒料而言，其冲刷程度随水泥剂量增加而减小，水泥剂量在4%-5%以上时抗冲刷能力大幅提高。
Erosion resistance: due to the infiltration of surface water, the accumulated water on the surface of the base course is easy to erode, causing pavement diseases, such as grout pumping, pits, etc. For the same stable granular material, its scouring degree decreases with the increase of cement dosage, and the anti scouring ability is greatly improved when the cement dosage is above 4% - 5%.
所以在原材料选择上，严格控制细集料小于0.075mm的颗粒的含量和选择一个合适的水泥剂量为公路基层质量，提高奠定基层。
Therefore, in the selection of raw materials, the content of fine aggregate particles less than 0.075mm shall be strictly controlled and a suitable cement dosage shall be selected to improve the quality of highway base course.
Through the formation of the strength of water stabilized macadam and the understanding of the content of the technical requirements for materials, it is necessary to improve the quality of water stabilized macadam base in terms of materials, structure and construction technology, reduce the diseases generated in the construction of cement stabilized macadam, and avoid early damage caused by human factors. Follow us , learn more!
公司地址：济南市商河县贾庄镇民营经济创业园
公司名称:2023澳门正版资料免费 
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