一、產(chǎn)品概述：
鈉基膨潤土防水毯耐靜水壓測定儀是**檢測儀器，按JG/T193-2006鈉靜水壓測定標(biāo)準(zhǔn)設(shè)計(jì)制造。適用于各種鈉基膨潤土防水毯的耐靜水壓的測定，具有結(jié)構(gòu)緊湊、操作簡便等優(yōu)點(diǎn)。
product description:
Sodium-based bentonite waterproof blanket hydrostatic pressure tester is a testing instrument, designed and manufactured according to JG / T193-2006 sodium hydrostatic pressure measurement standard. It is suitable for measuring the hydrostatic pressure resistance of various sodium-based bentonite waterproof blankets, and has the advantages of compact structure and easy operation.
二、工作原理：
?在鈉基膨潤土防水毯兩側(cè)壓差達(dá)到一定值后，防水毯** 會(huì)被破壞。逐級(jí)增加試樣兩側(cè)水力壓差，并保持一定時(shí)間，當(dāng)出 水口有水流出時(shí)， 表明試樣受到破壞，也**獲得了試樣的耐靜水 壓值。
?耐靜水壓試驗(yàn)采用南55型滲透儀，其中滲透容器主要由透水石、圓筒及頂蓋和底蓋組成。
Second, the working principle:
? After the pressure difference between the two sides of the sodium-based bentonite waterproof blanket reaches a certain value, the waterproof blanket ** will be destroyed. Increase the hydraulic pressure difference between the two sides of the sample step by step and keep it for a certain time. When water flows out of the water outlet, it indicates that the sample is damaged, and the hydrostatic pressure resistance value of the sample is also obtained.
? Hydrostatic pressure test adopts Nan 55 type infiltration meter, in which the infiltration container is mainly composed of permeable stone, cylinder, top cover and bottom cover.
三、技術(shù)參數(shù)：
?試件尺寸：Φ55mm
?*大壓力2.5MPa
?電源電壓：380V 50hz
?外形尺寸：600X750X1200mm
?整機(jī)重量：150Kg
Third, the technical parameters:
? Test piece size: Φ55mm
? * High pressure 2.5MPa
? Power supply voltage: 380V 50hz
? Overall dimensions: 600X750X1200mm
? Whole machine weight: 150Kg
四、試驗(yàn)方法：
?在距膨潤土防水毯邊緣 100mm以上的位置上， 畫出直徑與 南 55 型滲透儀的透水石大小相同的圓形弧線，用滴管在圓形弧 線周邊滴適量水，5min后按圓形弧線裁切試樣。
?將透水石放在南55型滲透儀的底部，在透水石上鋪一層石 英砂，將一塊試樣放在石英砂上，試樣周圍空隙部分用膨潤土粉 料添滿壓實(shí)， 其高度與試樣的高度相同， 在試樣的上面填滿細(xì)砂， 然后蓋上另一塊透水石和頂蓋， 擰緊螺帽，打開加壓閥門給供水 室適當(dāng)加壓.
?壓力設(shè)定：開機(jī)后按設(shè)定鍵“回” 按移位鍵“>” 再按 調(diào)整鍵“+”和“--”再調(diào)整數(shù)值，調(diào)好后，按設(shè)定鍵“回”存 入。在調(diào)整完下限數(shù)值后，按設(shè)定鍵可退出。1 小時(shí)后下限上升 為 0.1MPa 時(shí)間清除：重新做實(shí)驗(yàn)，持續(xù)按“--”鍵不釋放，**先顯示時(shí)間 值，10 秒后時(shí)間可從 0 小時(shí)開始， “！ ”工作時(shí)不能誤按。
?時(shí)間查閱：按 “—” 鍵壓力變?yōu)樾r(shí)顯示，上限為分鐘， 下限為秒。30 秒后回到壓力顯示，
?零點(diǎn)調(diào)整：開機(jī)后在無壓力時(shí)如不回零，按動(dòng)一次，可置 零。有壓力時(shí)勿按清零鍵，放壓后再置零. 當(dāng)滲透儀內(nèi)存氣體全部從排氣管排除后， 立刻關(guān)閉閥門封閉排 氣管。
?保持30min，使試樣充分膨脹，然后每隔 1h打開加壓閥 門提高0.1MPa的水壓，直至達(dá)到規(guī)定壓力。若測試過程中出水 口一直沒有水流出，判定該試件的耐靜水壓性能合格， 否則判定 該試件的耐靜水壓性能不合格。
?檢驗(yàn)結(jié)果計(jì)算依據(jù)相關(guān)標(biāo)準(zhǔn)進(jìn)行。
Fourth, the test method
? At a position more than 100mm from the edge of the bentonite waterproof blanket, draw a circular arc with the same diameter as the pervious stone of the South 55 type osmometer. Use a dropper to drip an appropriate amount of water around the circular arc. Cut the specimen in a curved line.
? Place the pervious stone on the bottom of the South 55 type osmometer, place a layer of quartz sａnd on the pervious stone, place a sample on the quartz sand, and fill the space around the sample with bentonite powder to compact it. The sample height is the same. Fill the top of the sample with fine sand, then cover another permeable stone and top cover, tighten the nut, open the pressure valve to properly pressurize the water supply chamber.
? Pressure setting: Press the setting key "Back" after starting the machine, press the shift key ">", and then press the adjustment keys "+" and "-" to adjust the value. After adjustment, press the setting key "Back" to save . After adjusting the lower limit value, press the set key to exit. After 1 hour, the lower limit rises to 0.1 MPa. Time clear: Re-do the experiment, keep pressing the "-" key without releasing, ** first display the time value, the time can start from 0 hours after 10 seconds, and "!" Cannot be pressed by mistake during work. .
? Time check: press “—” key, pressure will change to hour display, upper limit is minute, lower limit is second. After 30 seconds return to the pressure display,
? Zero adjustment: if it does not return to zero when there is no pressure after starting, press it once to set it to zero. Do not press the zero key when there is pressure, and set it to zero after depressurizing. When all the gas in the permeameter is exhausted from the exhaust pipe, immediately close the valve to close the exhaust pipe.
? Keep it for 30 minutes to fully expａnd the sample, and then open the pressure valve every 1 h to increase the water pressure of 0.1 MPa until the specified pressure is reached. If there is no water flowing out of the water outlet during the test, it is judged that the test piece has passed the hydrostatic pressure resistance, otherwise it is judged that the test piece has failed the hydrostatic pressure resistance.
? Calculation of inspection results is performed according to relevant standards.
鈉基膨潤土防水毯耐靜水壓測定儀實(shí)驗(yàn)完畢，打開排氣、放水閥，清理儀器表面，把常試倉 壓蓋，倉底盤，擦干并涂上防銹油脂，如設(shè)備長期不用，可打開 主機(jī)右下方的放水閥門，將系統(tǒng)內(nèi)部的水全部放出，以防凍裂。
Sodium-based bentonite waterproof blanket hydrostatic pressure resistance tester is finished. Open the exhaust and drain valves, clean the surface of the instrument, cover the common test chamber, the bottom of the chamber, dry it and apply rust-proof grease. Open the water drain valve at the bottom right of the host computer to drain all the water inside the system to prevent frost cracking.
