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瀝青混合料冷再生效果影響因素

來源:http://www.aluminiumcanisters.com/ 日期:2022-05-09
1)混合料中土的物理化學性質的影響
1) Influence of physical and chemical properties of soil in mixture
包含土的成分和品種的影響和瀝青混合料的組成結構類型的影響?;旌狭习凑疹w粒尺度分布狀況的不同,能夠分為三種物理狀況:懸浮一密實結構、骨架一空地結構、密實一骨架結構:
It includes the influence of soil composition and variety and the influence of asphalt mixture composition and structure type. According to the different particle size distribution, the mixture can be divided into three physical conditions: suspension dense structure, skeleton open space structure and dense skeleton structure:
水泥的礦物成分和分散度對水泥安穩土的安穩效果有顯著影響。
The mineral composition and dispersion of cement have a significant impact on the stability effect of cement stabilized soil.
瀝青品種和用量對混合料的性質影響尤為重要,過少的瀝青用量會使混合料達不到相關的指定規范,過多的用量會使混合料不僅達不到相關規范,還形成糟蹋,也不經濟,路面改進效果也不是很顯著。
The variety and amount of asphalt have a particularly important impact on the properties of the mixture. Too little amount of asphalt will make the mixture fail to meet the relevant specified specifications. Too much amount will not only make the mixture fail to meet the relevant specifications, but also form waste and uneconomical. The effect of pavement improvement is not very significant.
含水量對摻加水泥的瀝青混合料有很大的影響,當含水量不足時,水泥不能在混合猜中完全水化和水解,發揮不了水泥對混合料的安穩作用,影響強度的形成,含水量偏大會有水分流出,水泥的有效成分隨水流走,導致抗壓強度下降;含水量過大還會形成摻加水泥的瀝青混合料的干縮問題。
The water content has a great impact on the asphalt mixture with cement. When the water content is insufficient, the cement can not be fully hydrated and hydrolyzed in the mixing process, which can not play the role of cement in the stability of the mixture and affect the formation of strength. The water content tends to flow out, and the effective components of cement go with the water flow, resulting in the decrease of compressive strength; Excessive water content will also form the problem of dry shrinkage of asphalt mixture mixed with cement.
摻加水泥的瀝青混合料的強度是在一系列雜亂的物理、化學反應過程中逐步形成的,而這些反應過程需要必定的外界條件。試驗證明,必定的溫度和必定的濕度對摻加水泥的混合料的強度的形成是有利的。
The strength of asphalt mixture with cement is gradually formed in a series of chaotic physical and chemical reactions, which require certain external conditions. The test shows that a certain temperature and humidity are beneficial to the formation of the strength of the mixture mixed with cement.
一般的水泥安穩土對集料壓碎值有必定的要求。用水泥和乳化瀝青再生舊瀝青路面材料時,對集料的壓碎值相同也有必定的要求。
General cement stabilized soil has certain requirements for aggregate crushing value. When recycling old asphalt pavement materials with cement and emulsified asphalt, there are certain requirements for the same crushing value of aggregate.
瀝青混凝土舊路現場冷再生底層(底底層、面層)成本費主要為機械費用和添加劑費用,人工費與其他底層的施工根本相同?,F場冷再生工藝與其他半剛性底層資料相比,節省了以下費用:舊路面銑刨及外運費用、底層(底底層、面層)的原資料費用、原資料的運輸費用、縮短施工周期的費用等。
The cost of cold recycled bottom layer (bottom layer and surface layer) on the site of asphalt concrete old road is mainly the cost of machinery and additives, and the labor cost is basically the same as that of other bottom layers. Compared with other semi-rigid bottom layer materials, the on-site cold regeneration process saves the following costs: the cost of milling and outward transportation of the old pavement, the cost of raw materials of the bottom layer (bottom layer, surface layer), the transportation cost of raw materials, the cost of shortening the construction cycle, etc.
再生瀝青混合料除了具有一定的經濟效益外,還間接的具有良好的社會效益和環境效益,而這些效益是無法用錢銀來衡量的。
Recycled asphalt mixture not only has certain economic benefits, but also indirectly has good social and environmental benefits, which can not be measured by money and silver.
因為鋪筑再生路面而充分利用了舊瀝青混合料,解決了瀝青路面翻修所發生很多廢料對環境污染問題,保護了人類生存的環境,契合了我國的可持續發展戰略中廢物資源化的要求;因為節省瀝青和砂石材料,削減了對材料的需求量,又有助于自然資源的保護,平緩瀝青材料供求的緊張狀態;因為節省了投資,下降了工程造價,使某些本來不能及時翻修的舊瀝青路面得以修復,從而改善了道路情況,提高了公路的運輸能力,削減輪胎的磨損,下降運輸成本,削減可能發生的交通事故,確保行車舒適安全。
The old asphalt mixture is fully utilized due to the paving of recycled pavement, which solves the problem of environmental pollution caused by many wastes in the renovation of asphalt pavement, protects the environment for human survival, and meets the requirements of waste recycling in China's sustainable development strategy; Because it saves asphalt and gravel materials, reduces the demand for materials, helps to protect natural resources and ease the tension between supply and demand of asphalt materials; Because the investment is saved and the project cost is reduced, some old asphalt pavements that could not be renovated in time can be repaired, so as to improve the road condition, improve the transportation capacity of the road, reduce tire wear, reduce transportation costs, reduce possible traffic accidents and ensure driving comfort and safety.
本文主要介紹了瀝青路面老化機理、瀝青路面冷再生技能的根本原理,影響因素、經濟及環境效益等。經過對瀝青混合料冷再生根本技能的介紹,我能可以較為全面的了解這項技能的根本特點和使用優勢。
This paper mainly introduces the aging mechanism of asphalt pavement, the fundamental principle of asphalt pavement cold regeneration technology, influencing factors, economic and environmental benefits, etc. After introducing the basic skill of cold recycling of asphalt mixture, I can have a more comprehensive understanding of the basic characteristics and application advantages of this skill.
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