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首頁>産品中心>公路土工實驗儀器>CBR試驗附件>CBR-2CBR室內承載比試驗附件

CBR室內承載比試驗附件

産品簡介：

CBR室內承載比試驗附件由上海榮計達儀器科技有限公司提供，设备质保期一年，一年内产品如有质量问题，供方负责免费维修。如果因操作不当或者人为损坏，我公司亦应提供维修、更换服务，由此产生的费用我公司会酌情收取。

更新時間	2025-09-21
訪問次數	792
産品型號	CBR-2

詳細介紹

品牌	榮計達儀器	價格區間	面議
産地類別	國産	應用領域	建材/家具,綜合

CBR室內承載比試驗附件是检测仪器，使用前务必仔细阅读说明书。并由实验人员操作，以避免操作不当引起的伤害。如需了解更多资料请与我公司客服人员联系。CBR試驗附件由上海榮計達儀器科技有限公司提供，设备质保期一年，一年内产品如有质量问题，供方负责免费维修。如果因操作不当或者人为损坏，我公司亦应提供维修、更换服务，由此产生的费用我公司会酌情收取。

CBR室內承載比試驗附件主要構成：

CBR压头:1只（直径50mm）；

CBR筒:9只（直徑152mm）；

套环、底座螺栓:1套；

選配：墊塊:1個（直徑150mm）

選配：擊實錘:1套（錘重4.5kg落高450mm）

现场CBR試驗附件附加配件：

LQ-P浸水膨脹附件

透水板:9套

多孔底板:9套

百分表架:9套

半圓加載板:72件

百分表：9件

CBR筒:9只（直徑152mm）；

CBR承載比試驗儀使用方法:

1、打開電源開關，儀器運轉，檢查儀器的工作狀況是否正常，檢查手柄進出，轉動是否正常，如一切正常可准備開始試驗。

2、按《公路路面基層材料試驗規程》JTJ075-85承載比試驗方法制取試件。

3、測量飽水膨脹量：

A、將經過濕氣養生的試件放在裝有調節杆的多孔板，在板上加足夠的載荷板，使試件面上的壓力等于該材料層上路面的壓力，

B、將試筒與多孔板一起放在水槽內（先不放水）並用拉杆將模具拉緊，安裝百分表，讀取初始讀數。

C、向水槽內放水，使自由進到試件的頂部，在飽水期間，槽內水應保持在試件的頂面以上25mm，通常試件要泡96小時，

D、在泡水時間到時，讀取百分表讀數，計算膨脹量。

AV=泡水後試件高度的變化/原試件高（120mm）×100%

E、從水槽中取出試樣，倒出試樣上的水，靜置15分鍾讓其排水然後卸去附加載荷和多孔板，底板及濾紙，並承重M，以計算試件的深度及密度的變化。

4、貫入試驗

A、將飽和水試驗終了的試件放到試驗儀升降盤上，調整貫入杆與測力環對中，在貫入杆周圍放置預定數量的載荷板。

B、先將貫入杆用手輪施加45N載荷，然後將測力環，測形變的百分表調整到零點。

C、加荷壓人手輪，記錄測力百分表某些讀數（20、40…..）時的貫入量，並注意貫入量爲2.5mm，能有8各以上的讀數，總貫入量爲2.5、50mm時的承載比：

承載比C=單位壓力/7或10.5×100%

CBR試驗附件符合标准：JTJ059-95《公路路基路面现场测试规程》

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