行業(yè)資訊

水穩(wěn)砼的養(yǎng)生是怎么個情況？

來源：http://apdetong.cn/ 日期：2023-01-28

濟南水穩(wěn)砼既是保證水泥穩(wěn)定碎石（砂礫）強度的需要，又是減少和避免干縮裂縫的措施。因此，每一段底基層碾壓完成并經(jīng)壓實度檢測合格后，應(yīng)立即開始養(yǎng)生，養(yǎng)生宜采用不透水薄膜、濕砂、草袋、棉毯覆蓋并灑水保濕養(yǎng)生。

Jinan water stabilized concrete is not only the need to ensure the strength of cement stabilized crushed stone (gravel), but also the measure to reduce and avoid dry shrinkage cracks. Therefore, after each section of subbase is rolled and passes the compactness test, the curing should be started immediately. The curing should be covered with impermeable film, wet sand, straw bag, cotton blanket, and watered for moisturizing.

基層完成后要及時交給路面施工單位，進行瀝青乳液養(yǎng)生，避免基層長期暴曬。養(yǎng)生期不宜少于7天，并應(yīng)封閉交通，除灑水車輛外，嚴(yán)禁其它車輛通行?；鶎舆^冬時，應(yīng)采取覆蓋保溫措施，以防止基層開裂或表面受損可采取先鋪塑料薄膜后覆蓋粘土的措施，減少和避免因溫差過大時產(chǎn)生溫縮裂縫。

After the base course is completed, it shall be timely delivered to the pavement construction unit for asphalt lotion curing to avoid long-term exposure of the base course. The curing period should not be less than 7 days, and the traffic should be closed. Except for the watering vehicles, other vehicles are not allowed to pass. During the winter of the base course, the thermal insulation measures shall be taken to prevent the base course from cracking or surface damage. The measures of first laying plastic film and then covering clay can be taken to reduce and avoid temperature shrinkage cracks caused by excessive temperature difference.

水穩(wěn)砼攤鋪后，當(dāng)水穩(wěn)砼的含水量等于或略大于佳含水量時，應(yīng)及時根據(jù)試驗段確定的碾壓工藝，用輕型壓路機并配合20T以上壓路機在結(jié)構(gòu)層全寬內(nèi)進行碾壓。碾壓段長度根據(jù)試驗段確定的長度及氣溫情況確定，氣溫高時，水分蒸發(fā)快，縮短碾壓段長度，反之，可適當(dāng)延長碾壓段長度，以40-50米為宜，過短則易造成平整度較差。

After paving the water stabilized concrete, when the water content of the water stabilized concrete is equal to or slightly greater than the optimum water content, the light roller shall be used in time according to the rolling process determined in the test section, and the roller above 20T shall be used for rolling within the full width of the structural layer. The length of the rolling section is determined according to the length determined by the test section and the temperature. When the temperature is high, the water evaporates quickly and the length of the rolling section is shortened. On the contrary, the length of the rolling section can be appropriately extended, preferably 40-50 meters. If it is too short, it is easy to cause poor flatness.
濟南水穩(wěn)砼

碾壓方式初壓一般采用膠輪壓路機或鋼輪壓路機靜壓1-2遍，復(fù)壓采用振動壓路機弱振強度2-4遍，終壓采用鋼輪壓路機或膠輪壓路機靜壓1-2遍，碾壓速度初、終壓宜為1.5-1.7Km/h，復(fù)壓宜為2.0-2.5Km/h，直線和不設(shè)超高的平曲線段，由兩側(cè)路肩向路中心碾壓，設(shè)超高的平曲線段，由內(nèi)側(cè)路肩向外路肩進行碾壓。

Rolling method: the initial rolling shall be carried out by rubber wheel roller or steel wheel roller for 1-2 times, the re-rolling shall be carried out by vibratory roller with weak vibration strength for 2-4 times, the final rolling shall be carried out by steel wheel roller or rubber wheel roller for 1-2 times, the initial and final rolling speed shall be 1.5-1.7Km/h, the re-rolling speed shall be 2.0-2.5km/h, the straight line and the flat curve section without superelevation shall be rolled from the shoulders on both sides to the road center, and the flat curve section with superelevation shall be set, Rolling shall be carried out from the inner shoulder to the outer shoulder.

碾壓時，輪跡應(yīng)重疊1/2輪寬。相鄰兩段的接頭處，應(yīng)錯成橫向45°的階梯狀碾壓。嚴(yán)禁壓路機在已完成或正在碾壓的路段上“調(diào)頭”和急剎車。自拌和至碾壓結(jié)束原則控制在2h以內(nèi)。您對該產(chǎn)品還有什么問題或者需求都能隨時來我們網(wǎng)站http://apdetong.cn做咨詢！

When rolling, the wheel track shall overlap 1/2 wheel width. The joints of the two adjacent sections shall be staggered into a 45 ° transverse stepped rolling. It is strictly prohibited for the roller to "turn around" and brake sharply on the road section that has been completed or is being rolled. From mixing to rolling, it shall be controlled within 2h in principle. If you have any questions or needs about this product, please come to our website at any time http://apdetong.cn Consulting!

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