瀝青混合料劈裂試驗(yàn)儀是瀝青檢測(cè)儀器，用于測(cè)定瀝青混合料在規(guī)定溫度和加載速率時(shí)劈裂破壞或處于彈性階段的力學(xué)性質(zhì)，亦可供瀝青路面結(jié)構(gòu)設(shè)計(jì)選擇瀝青混合料力學(xué)設(shè)計(jì)參數(shù)及評(píng)價(jià)瀝青混合料低溫抗裂性能時(shí)使用。

Asphalt mixture split tester is an asphalt testing instrument, which is used to determine the mechanical properties of the asphalt mixture at the specified temperature and loading rate when it splits or is in the elastic phase. It can also be used for the design of asphalt pavement structure. It is used when designing parameters and evaluating the low temperature crack resistance of asphalt mixtures.

瀝青混合料劈裂試驗(yàn)儀技術(shù)指標(biāo)：

★上升速率：（50±5）mm/min

★壓條直徑：（101.6±0.2）mm （152.4±0.2）mm

★大壓力： 50KN 精度 1％

★位移測(cè)量范圍：0-15mm 分辨率：0.01mm 精度 ±0.1mm

★外形尺寸: 650x480x900mm

★環(huán)境溫度：≤30℃

★相對(duì)濕度：≤85%

★整機(jī)功耗：750W

★儀器凈重：100kg

★電源電壓：220v

Technical indicators of SYD-0716 asphalt mixture split tester:

★ Rising rate: (50 ± 5) mm / min

★ Bead diameter: (101.6 ± 0.2) mm (152.4 ± 0.2) mm

★ High pressure: 50KN accuracy 1%

★ Displacement measurement range: 0-15mm resolution: 0.01mm accuracy ± 0.1mm

★ Dimensions: 650x480x900mm

★ Ambient temperature: ≤30 ℃

★ Relative humidity: ≤85%

★ Power consumption: 750W

★ Net weight of the instrument: 100kg

★ Power supply voltage: 220v

瀝青混合料劈裂試驗(yàn)儀特點(diǎn)：

★設(shè)有過(guò)載保護(hù)，下降過(guò)位保護(hù)。

★操作簡(jiǎn)便，測(cè)試數(shù)據(jù)準(zhǔn)確，性能穩(wěn)定可靠。

★儀器自動(dòng)試驗(yàn)，顯示并打印，繪制試件受力變形的坐標(biāo)曲線圖。

★可存儲(chǔ)15組試件的試驗(yàn)結(jié)果。

★大型液晶屏顯示曲線和穩(wěn)定度及流值。

★流值檢測(cè)有單路與雙路兩種。

★試驗(yàn)由儀器或計(jì)算機(jī)自動(dòng)控制，試件受壓變形過(guò)程數(shù)據(jù)及曲線由計(jì)算機(jī)自動(dòng)存盤并顯示，可通過(guò)打印機(jī)打印輸出。

★**的自動(dòng)分析軟件，按照《瀝青混合料配合比設(shè)計(jì)方法》繪制出各種曲線，自動(dòng)給出A佳瀝青用量，可通過(guò)打印機(jī)輸出。

★帶有上位機(jī)軟化可以通過(guò)強(qiáng)大的實(shí)驗(yàn)軟件進(jìn)行分析處理。

Features of asphalt mixture split tester:

★ With overload protection and falling over-position protection.

★ Easy operation, accurate test data and stable and reliable performance.

★ The instrument automatically tests, displays and prints, and draws the coordinate curve of the deformation of the test piece.

★ Can store the test results of 15 groups of test pieces.

★ Large LCD screen displays curve, stability and current value.

★ There are two types of current value detection: single and dual.

★ The test is automatically controlled by the instrument or computer. The data and curve of the compression process of the test piece are automatically saved and displayed by the computer, and can be printed out by a printer.

★ ** Automatic analysis software, draws various curves according to "Asphalt Mixture Proportion Design Method", automatically gives the A-best amount of asphalt, which can be output through a printer.

★ Softening with host computer can be analyzed and processed by powerful experimental software.

SYD-0716瀝青混合料劈裂試驗(yàn)儀適用范圍：

適用于測(cè)定瀝青混合料在規(guī)定溫度和加載速率時(shí)劈裂破壞或處于彈性階段的力學(xué)性質(zhì)，亦可供瀝青路面結(jié)構(gòu)設(shè)計(jì)選擇瀝青混合料力學(xué)設(shè)計(jì)參數(shù)及評(píng)價(jià)瀝青混合料低溫抗裂性能時(shí)使用。試驗(yàn)溫度與加載速率可由當(dāng)?shù)貧夂驐l件根據(jù)試驗(yàn)?zāi)康幕蛴嘘P(guān)規(guī)定選用，但試驗(yàn)溫度不得高于30℃，如無(wú)特殊規(guī)定，宜采用試驗(yàn)溫度15℃±0.5℃,加載速率為50mm/min。當(dāng)用于評(píng)價(jià)瀝青混合料低溫抗裂性能時(shí)，宜采用試驗(yàn)溫度-10℃±0.5℃及加載速率1mm/min。

SYD-0716 Asphalt Mixture Split Tester Application:

It is suitable for measuring the mechanical properties of asphalt mixtures at the specified temperature and loading rate during splitting failure or in the elastic phase. It can also be used when designing asphalt pavement structure design parameters and evaluating the low temperature crack resistance of asphalt mixtures. The test temperature and loading rate can be selected by local climatic conditions according to the test purpose or relevant regulations, but the test temperature must not be higher than 30 ° C. If there is no special requirement, the test temperature should be 15 ° C ± 0.5 ° C, and the loading rate is 50mm / min. When used to evaluate the low temperature crack resistance of asphalt mixtures, the test temperature of -10 ℃ ± 0.5 ℃ and the loading rate of 1mm / min should be used.

SYD-0716瀝青混合料劈裂試驗(yàn)儀本方法測(cè)定時(shí)采用瀝青混合料的泊松比μ值如表1所示，其它試驗(yàn)溫度的μ值由內(nèi)插法決定。本方法也可由試驗(yàn)實(shí)測(cè)的垂直變形及水平變形計(jì)算實(shí)際的μ值，但計(jì)算的μ值必須在0.2~0.5范圍內(nèi)。

試驗(yàn)溫度（℃） ≤10 15 20 25 30 泊松比μ值 0.25 0.30 0.35 0.40 0.45 本方法采用的圓柱體試件應(yīng)符合下列要求：

A大粒徑不超過(guò)26.5mm（圓孔篩30mm）時(shí)，用馬歇爾標(biāo)準(zhǔn)擊實(shí)法成型的直徑為φ101.6mm±0.25mm試件，高為63.5mm±1.3mm。

從輪碾機(jī)成型的板塊試件或道路現(xiàn)場(chǎng)鉆取直徑φ100mm±2mm或φ150mm±2.5mm，高為40mm±5mm的圓柱體試件。

SYD-0716 Asphalt Mixture Split Tester The Poisson's ratio μ value of the asphalt mixture used in this method is shown in Table 1. The μ values of other test temperatures are determined by interpolation. This method can also calculate the actual μ value from the measured vertical deformation and horizontal deformation, but the calculated μ value must be in the range of 0.2 ~ 0.5.

Test temperature (℃) ≤10 15 20 25 30 Poisson's ratio μ value 0.25 0.30 0.35 0.40 0.45 The cylindrical test piece used in this method shall meet the following requirements:

When the large particle size of A is not more than 26.5mm (round hole sieve 30mm), the test piece with a diameter of φ101.6mm ± 0.25mm formed by Marshall's standard compaction method is 63.5mm ± 1.3mm high.

Cylinder test pieces with a diameter of φ100mm ± 2mm or φ150mm ± 2.5mm and a height of 40mm ± 5mm were drilled from the plate test piece formed by the wheel mill or the road site.

SYD-0716瀝青混合料劈裂試驗(yàn)儀儀具與材料：

試驗(yàn)機(jī)：能保持規(guī)定加載速率的材料試驗(yàn)機(jī)，也可采用馬歇爾試驗(yàn)儀。試驗(yàn)機(jī)負(fù)荷應(yīng)滿足A大測(cè)定荷載不超過(guò)其量程的80%且不小于其量程的20%的要求，宜采用40kN或60kN傳感器，讀數(shù)精密度為10N。

恒溫水箱：能保持溫度為—18℃，當(dāng)缺乏專用的恒溫冰箱時(shí)，可采用家用電冰箱的冷凍室代替，控溫準(zhǔn)確度為2℃。 恒溫水槽：用于試件保溫，溫度范圍能滿足試驗(yàn)要求，控溫準(zhǔn)確度為0.5℃。

壓條：上下各一根，試件直徑100mm時(shí)，壓條寬度為12.7mm，內(nèi)側(cè)曲率半徑50.8mm，壓條兩端均應(yīng)磨圓。

劈裂試驗(yàn)夾具：下壓條固定在夾具上，壓條可上下自由活動(dòng)。

其它：塑料袋、卡尺、天平、記錄紙、膠皮手套等。

SYD-0716 Asphalt Mixture Splitting Tester Apparatus and Materials:

Testing machine: a material testing machine capable of maintaining a specified loading rate, and a Marshall tester can also be used. The load of the testing machine should meet the requirements that the large A measurement load does not exceed 80% of its range and not less than 20% of its range. A 40kN or 60kN sensor should be used with a reading accuracy of 10N.

Constant temperature water tank: can maintain the temperature of -18 ° C. When a dedicated constant temperature refrigerator is not available, the freezer of a household refrigerator can be used instead. The accuracy of temperature control is 2 ° C. Constant temperature water tank: It is used for the insulation of the test piece. The temperature range can meet the test requirements, and the temperature control accuracy is 0.5 ° C.

Beads: one each for the upper and lower, when the diameter of the test piece is 100mm, the width of the bead is 12.7mm, and the inner radius of curvature is 50.8mm. Both ends of the bead should be rounded.

Split test fixture: The lower bead is fixed on the fixture, and the bead can move up and down freely.

Others: plastic bags, calipers, balances, recording paper, rubber gloves, etc.