乳化瀝青輪碾壓試驗儀適用于測定乳化瀝青稀漿封層混合料中是否有過量瀝青的試驗。控制瀝青用量的上限，與濕輪磨耗試驗一起確定乳化瀝青稀漿封層混合料的瀝青用量。儀器符合“JTJ052-2000”標準中“0755-2000”的試驗要求。主要有電機、齒輪變速箱、傳動曲柄、連接臂、配重箱、橡膠腳輪及帶有數顯計數器的電氣控制器組成。

Emulsified asphalt roller compaction tester is suitable for testing whether there is excess asphalt in the emulsified asphalt slurry sealing mixture. The upper limit of the amount of bitumen is controlled, and the amount of bitumen of the emulsified bitumen slurry sealing layer mixture is determined together with the wet wheel wear test. The instrument complies with the test requirements of "0755-2000" in the "JTJ052-2000" standard. It is mainly composed of motor, gearbox, transmission crank, connecting arm, weight box, rubber caster and electric controller with digital display counter.

乳化瀝青輪碾壓試驗儀技術參數：

★電源電壓： 380V

★電機功率： 250W

★試模底板 77*407mm

★試模尺寸： 3、5、6、8、10*50*380mm

★鋼蓋板尺寸：3*35*378mm

★框架尺寸：38*355mm

★電機轉速： 1400r/pm；

★碾壓頻率： 44次/分；

★負荷輪橡膠硬度：60-70

★曲柄半徑： 150mm；

★加載重量： 小車平置總重量56.7Kg；

★小車行程： 300 mm；

★重量： 80KG

★外形尺寸：1000x400x500mm

Technical parameters of emulsified asphalt wheel rolling tester:

★ Power supply voltage: 380V

★ Motor power: 250W

★ Trial plate 77 * 407mm

★ Test mold size: 3, 5, 6, 8, 10 * 50 * 380mm

★ Steel cover size: 3 * 35 * 378mm

★ Frame size: 38 * 355mm

★ Motor speed: 1400r / pm;

★ Rolling frequency: 44 times / minute;

★ Load wheel rubber hardness: 60-70

★ Crank radius: 150mm;

★ Loading weight: The total weight of the cart is 56.7Kg;

★ Trolley travel: 300 mm;

★ Weight: 80KG

★ Dimensions: 1000x400x500mm

乳化瀝青輪碾壓試驗儀試驗準備：

★按要求的級配比例準備粗、細集料及填料，烘干。

★稱混合料總重量500g放入拌鍋拌勻，然后加入適量的水或添加劑水溶液拌勻，★再加入定量的乳化瀝青迅速拌勻，時間不超過1min。

★按要求的稀漿封層厚度選擇試模厚度，試模厚度宜比稀漿公稱大粒徑厚25%。

★將試模放在油毛氈上，將達到要求配比的稀漿混合料立即倒入試模中。

★用刮板刮平，刮掉多余的稀漿混合料。

★取走試模，把式樣放入60℃的烘箱中烘至恒重，一般不少于16H。取出式樣，冷卻至室溫。

★準備好0.15-0.6mm的標準砂，也可從道路施工實際用砂中篩分純該粒級的砂代替。將砂放在烘箱中加熱至82℃。

Test preparation for emulsified asphalt wheel rolling tester:

★ Prepare coarse and fine aggregates and fillers according to the required grading ratio and dry.

★ Weigh the total weight of the mixture 500g into a mixing pot and mix well, then add an appropriate amount of water or additive aqueous solution to mix well, and then add a fixed amount of emulsified asphalt to mix well, the time does not exceed 1min.

★ Select the thickness of the test mold according to the required thickness of the slurry seal. The thickness of the test mold should be 25% thicker than the nominal size of the slurry.

★ Put the test mold on the linoleum, and immediately pour the slurry mixture that reaches the required ratio into the test mold.

★ Scrape it with a scraper to scrape off the excess slurry mixture.

★ Remove the test mold and put the pattern in a 60 ° C oven to constant weight, generally not less than 16H. Remove the pattern and cool to room temperature.

★ Standard sａnd of 0.15-0.6mm is prepared. It can also be sieved from the actual sａnd used in road construction to purify the grain-grade sand. The sａnd was heated in an oven to 82 ° C.

乳化瀝青輪碾壓試驗儀控制器的使用：

先連接控制器與主機上的電機線和傳感器線插頭將電源插頭插入三相四線制得插座中，打開電源開關，數顯計數器顯示為1000次的工作狀態，如按“SET”設定鍵計數器會轉換為100次工作狀態，軟“Δ”或是“▽”鍵可將計數設定值任意改多或改少，設定值確定后，按“啟動”鍵，主機將進行工作。

The use of emulsified asphalt wheel rolling tester controller:

First connect the motor and sensor cable plugs on the controller and the host, insert the power plug into a three-phase four-wire socket, turn on the power switch, and the digital display counter displays the working state of 1000 times, such as pressing the "SET" setting key The counter will be switched to 100 working states. The soft "Δ" or "▽" key can be used to change the count setting value arbitrarily more or less. After the setting value is determined, press the "Start" key and the host will work.

乳化瀝青輪碾壓試驗儀試驗步驟：

★調節連接壁軸和腳輪之間的距離為61cm，輪子必須對中，保證輪子運動時框架保持平衡。

★將配重箱對中，保證心在輪軸的垂直方向。

★將清洗干凈的負荷輪放在臺秤上，這時連接臂要和框架平行。然后往配重箱加載，調節總重質量為56.7kg。

★抬起輪子，把式樣對著定位銷，安裝在儀器上，用元寶螺母夾緊。

★把負荷輪放在式樣上。開動儀器使輪子在試樣上往復碾壓1000次，碾壓的頻率為44次/min，在碾壓過程中如發現樣品上有出現發粘現象或明顯的發亮點時，可撒少量水以防止輪子粘起樣品。

★碾壓1000次后停下儀器，卸載，取下試樣，用水把試樣表面沖洗干凈，放在60℃的烘箱中烘干至恒重。

★從烘箱中取出試樣并稱重(M1)，立即把樣品重新裝在儀器的原來位置上。把砂框放在樣品上對好位置，稱取200g(82℃)的熱砂導入砂框中迅速攤平，將鋼蓋板放在砂框中間。

★把負荷輪放在鋼蓋板上。開動儀器以相同的頻率碾壓100次。

★碾壓100次后停機，取下試樣，用毛刷輕輕刷去試樣上的浮砂，然后稱試樣及吸附的砂子總質量(M2)

Test procedure of emulsified asphalt wheel roller tester:

★ Adjust the distance between the connecting wall shaft and the caster to 61cm. The wheels must be centered to ensure that the frame is balanced when the wheels move.

★ Center the weight box to ensure that the center is in the vertical direction of the axle.

★ Place the cleaned load wheel on the platform scale. At this time, the connecting arm should be parallel to the frame. Then load it into the weight box and adjust the total weight to 56.7kg.

★ Raise the wheel, point the pattern to the positioning pin, install it on the instrument, and clamp it with ingot nuts.

★ Put the load wheel on the pattern. Start the instrument to make the wheel roll over the sample 1000 times, and the frequency of rolling is 44 times / min. If the sample is found to have stickiness or obvious bright spots during the rolling process, you can sprinkle a small amount of water Prevent the wheels from sticking to the sample.

★ After rolling 1,000 times, stop the instrument, unload, remove the sample, rinse the surface of the sample with water, and dry in a 60 ° C oven to constant weight.

★ Take out the sample from the oven and weigh it (M1), and immediately reinstall the sample in the original position of the instrument. Place the sａnd frame on the sample in the correct position, weigh 200g (82 ° C) of hot sａnd into the sａnd frame and quickly flatten it. Place the steel cover in the middle of the sａnd frame.

★ Put the load wheel on the steel cover. Operate the instrument 100 times at the same frequency.

★ Stop the machine after rolling 100 times, remove the sample, and gently brush the floating sａnd on the sample with a brush, and then weigh the total mass of the sample and the adsorbed sａnd (M2)

乳化瀝青輪碾壓試驗儀試驗計算：

M2-M1

LWT＝ (1)

A

式中：LMT——乳化瀝青稀漿封層混合料單位面積粘附的砂量， g/m2:

A——試樣負荷面積，m2:

M1——A次1000次碾壓后試樣質量，g；

M2——二次100次碾壓后試樣與砂量的總質量,g。

Test calculation of emulsified asphalt wheel rolling tester:

M2-M1

LWT = (1)

A

In the formula: LMT——the amount of sａnd adhered per unit area of the emulsified asphalt slurry sealant mixture, g / m2:

A——sample load area, m2:

M1——A sample mass after 1000 times of rolling, g;

M2——Total mass of sample and sａnd after 100 times of rolling, g.

乳化瀝青輪碾壓試驗儀注意事項：

★儀器使用后，應及時關閉電源，并用支架把負荷輪架起，在進行清潔保養。

★每3-6個月檢查變速箱內是否缺油，以便及時加油。

Note for emulsified asphalt wheel rolling tester:

★ After using the instrument, the power should be turned off in time, and the load wheel should be raised with a bracket for cleaning and maintenance.

★ Check every 3-6 months if there is no oil in the gearbox, in order to refuel in time.

乳化瀝青輪碾壓試驗儀裝箱單：

★主機 1臺

★計數控制器 1臺

★試模底板 1塊

★砂框 1塊

★鋼蓋板 1塊

★試模 1套

★說明書 1份

★合格證 1份

Packing list of emulsified asphalt wheel rolling tester:

★ 1 host

★ Counting controller 1

★ Trial mold base 1

1 sａnd box

★ 1 steel cover

★ Trial mold 1 set

★ 1 copy of instruction manual

★ 1 certificate