行業(yè)資訊
冷再生機(jī)使用的冷再生材料成形事項(xiàng)
來源：http://lzqdw.com/ 日期：2023-05-24
隨著我國大量的路面進(jìn)入維修期，路面冷再生技術(shù)會得到更廣泛的使用。冷再生材料開始一般作為基層使用，目前逐步作為下面層使用；在我國冷再生施工中，水泥作為再生劑較多其實(shí)驗(yàn)方法已經(jīng)較為統(tǒng)一，主要的參考傳統(tǒng)的半剛性材料。
As a large number of road surfaces in our country enter the maintenance period, cold pavement regeneration technology will be more widely used. Cold recycled materials began to be generally used as base layers, and are now gradually being used as lower layers; In China's cold recycling construction, cement is widely used as a recycling agent, and its experimental methods have been relatively unified, mainly referring to traditional semi rigid materials.
冷再生機(jī)租賃廠家認(rèn)為冷再生材料的性質(zhì)與傳統(tǒng)道路材料不完全相同，因而對成形的要求也不完全相同。冷再生材料按再生劑大致可以區(qū)分為兩類：無機(jī)再生劑和瀝青再生劑，瀝青再生時(shí)往往加入少量水泥以提高其抗水損壞能力。
Cold recycling machine rental manufacturers believe that the properties of cold recycling materials are not completely the same as traditional road materials, and therefore the requirements for forming are not entirely the same. Cold recycled materials can be roughly divided into two types according to the recycling agent: inorganic recycling agent and asphalt recycling agent. During asphalt recycling, a small amount of cement is often added to improve its resistance to water damage.
常用的無機(jī)再生劑是水泥，其他還有二灰、水泥粉煤灰等。無機(jī)穩(wěn)定冷再生一般按照傳統(tǒng)的半剛性材料進(jìn)行成形和養(yǎng)生。常溫下進(jìn)行重型擊實(shí)試驗(yàn)或者振動(dòng)擊實(shí)試驗(yàn)，在20℃或者25℃下養(yǎng)生7天。
The commonly used inorganic regenerant is cement, and there are other types such as fly ash and cement fly ash. Inorganic stable cold regeneration is generally formed and cured using traditional semi rigid materials. Conduct heavy compaction test or vibration compaction test at room temperature, and maintain for 7 days at 20 ℃ or 25 ℃.
通過含水量-強(qiáng)度關(guān)系確定佳含水量。瀝青穩(wěn)定劑冷再生時(shí)的情況比較復(fù)雜，尚無統(tǒng)一方法。冷再生材料組成設(shè)計(jì)方法常見的方法是用擊實(shí)法確定佳液體量，用馬歇爾穩(wěn)定度、干劈裂強(qiáng)度、濕劈裂強(qiáng)度中的一個(gè)或幾個(gè)達(dá)到優(yōu)來確定瀝青用量。
Determine the optimal water content through the relationship between water content and strength. The situation during cold regeneration of asphalt stabilizers is relatively complex, and there is no unified method. The common method for designing the composition of cold recycled materials is to use the compaction method to determine the optimal liquid volume, and to use one or more of Marshall stability, dry splitting strength, and wet splitting strength to determine the asphalt dosage.
目前國內(nèi)的冷再生道路其中使用較多的結(jié)構(gòu)有熱拌瀝青混合料層+再生層+半剛性層和熱拌瀝青混合料層+再生層。
At present, the structures commonly used in cold recycled roads in China include hot mix asphalt mixture layer+recycled layer+semi rigid layer and hot mix asphalt mixture layer+recycled layer.
冷再生對于裂縫、永久變形、表面破壞都有很好的消除能力。加之我國普遍采用半剛性基層瀝青路面，基層存在裂縫問題，有時(shí)需要面層基層同時(shí)維修，這時(shí)冷再生法尤為合適。還有什么問題就來我們網(wǎng)站http://lzqdw.com咨詢吧！
Cold regeneration has a good ability to eliminate cracks, permanent deformation, and surface damage. In addition, semi rigid base asphalt pavement is commonly used in our country, and there are cracks in the base layer. Sometimes, it is necessary to maintain the surface layer and base layer simultaneously. In this case, the cold recycling method is particularly suitable. If you have any further questions, please come to our website http://lzqdw.com Consult!
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