瀝青混合料路用性能試驗儀主要用于評估干燥或潮濕條件下瀝青混合料的A變形（車(chē)轍）、疲勞斷裂和潮濕敏感性。本系統是在已有（美國）LAPA-1瀝青路面分析儀技術(shù)上消化吸收并改進(jìn)提高的，更接近我國《公路瀝青及瀝青混合料試驗規程》對試件的要求和我國路面實(shí)際情況。進(jìn)行一次完整的A變形評估測試需要2小時(shí)15分（8，000次循環(huán)）。疲勞斷裂測試時(shí)間取決于被評估系統的疲勞狀況。
Asphalt mixture road performance tester is mainly used to evaluate the A deformation (rut), fatigue fracture and moisture sensitivity of asphalt mixture under dry or wet conditions. This system is based on the existing (US) LAPA-1 Asphalt Pavement Analyzer technology, digests, absorbs, improves, and is closer to the requirements of China's "Highway Asphalt and Asphalt Mixture Test Rules" for test specimens and the actual situation of our country's pavement. It takes 2 hours and 15 minutes to perform a complete A deformation assessment test (8,000 cycles). The fatigue fracture test time depends on the fatigue condition of the system being evaluated.
瀝青混合料路用性能試驗儀技術(shù)參數：
★可進(jìn)行動(dòng)態(tài)模量試驗、流變次數和流變時(shí)間的瀝青試驗，用于瀝青混合料路用性能評估，得到的動(dòng)態(tài)模量主曲線(xiàn)能用于路面結構設計。
★能**評價(jià)及預測混合料的真實(shí)性能。
★可完成三個(gè)基本性能試驗：動(dòng)態(tài)模量試驗；重復加載A變形（流變次數）試驗；靜態(tài)蠕變（流變時(shí)間）試驗。
★加載能力 ：15 kN（靜載），13.5 kN（動(dòng)載）。
★作動(dòng)器沖程：30 mm。
★試件尺寸：100 mm直徑x 150 mm高。
★溫度控制范圍： 4～60°C。
★圍壓： 0～210 kPa。
★外形尺寸：1330X630X1100mm
★重量：250kg
Technical parameters of asphalt mixture road performance tester:
★ Asphalt test with dynamic modulus test, rheological times and rheological time can be used to evaluate the road performance of asphalt mixtures. The main curve of dynamic modulus can be used in pavement structure design.
★ Can evaluate and predict the true performance of the mixture.
★ Three basic performance tests can be completed: dynamic modulus test; repeated loading A deformation (rheological number) test; static creep (rheological time) test.
★ Loading capacity: 15 kN (static load), 13.5 kN (dynamic load).
★ Actuator stroke: 30 mm.
★ Test piece size: 100 mm diameter x 150 mm height.
★ Temperature control range: 4 ～ 60 ° C.
★ Confining pressure: 0 ～ 210 kPa.
★ Dimensions: 1330X630X1100mm
★ Weight: 250kg
瀝青混合料路用性能試驗儀的A變形（車(chē)轍）敏感度的評估，是通過(guò)將條塊形可柱形的試樣放在可重復進(jìn)行的車(chē)輪荷載下測量其輪跡處的A變形量而得出的。本系統具有自動(dòng)數據采集系統測量車(chē)轍數據，并以數值和圖形方式顯示。每經(jīng)過(guò)條形試樣或六個(gè)圓形試樣（A大為113kg/250lbs），相對應的接觸壓力A大可達1.4Mpa。三個(gè)條形試件或六個(gè)圓形試件（可由旋轉壓實(shí)機、振動(dòng)壓實(shí)機、馬歇爾儀、或道路取芯獲得）放入特制的模具內在可控的高溫、干燥或浸水環(huán)境下作測試。
The evaluation of the A deformation (rut) sensitivity of the asphalt mixture road performance tester is performed by measuring the A deformation at the wheel track by placing a strip-shaped columnar specimen under a reproducible wheel load. Drawn. The system has an automatic data acquisition system to measure rut data and display it in numerical and graphical ways. After passing through a strip sample or six round samples (A is 113kg / 250lbs), the corresponding contact pressure A can reach 1.4Mpa. Three strip test pieces or six round test pieces (obtained from a rotary compactor, a vibratory compactor, a Marshall instrument, or a road core) are placed in a special mold under a controlled high temperature, dry or immersed environment For testing.
瀝青混合料路用性能試驗儀的疲勞耐久性，可以通過(guò)將梁形試件放在低溫環(huán)境下，用可控數值和接觸壓力的重復輪載進(jìn)行試驗來(lái)測定。在可控高溫的干燥或浸水環(huán)境下，同時(shí)可進(jìn)行三個(gè)條形試件或六個(gè)圓形試件（搓揉成形或現場(chǎng)取芯試件）的試驗。
自動(dòng)數據采集系統具有測疲勞軟件。疲勞軟件將條形試件兩端的測量值平均，畫(huà)出一條參數實(shí)線(xiàn)。在條形試件中間獲得一個(gè)測驗量值，畫(huà)出一條點(diǎn)劃線(xiàn)。隨著(zhù)疲勞增加，兩條曲線(xiàn)分叉增加，在試樣斷開(kāi)時(shí)，曲線(xiàn)迅速爬升。
The fatigue durability of the asphalt mixture road performance tester can be determined by placing the beam-shaped test piece in a low-temperature environment and performing repeated wheel load tests with a controlled value and contact pressure. In a controlled high-temperature dry or immersed environment, three strip test pieces or six round test pieces (kneading or field coring test pieces) can be tested at the same time.
The automatic data acquisition system has fatigue testing software. The fatigue software averages the measured values at both ends of the bar specimen and draws a solid line of parameters. Obtain a test value in the middle of the strip test piece and draw a dotted line. As fatigue increases, the two curves diverge, and the curve climbs rapidly when the specimen is disconnected.
瀝青混合料路用性能試驗儀本系統一次可容納三個(gè)樣品，可測試振動(dòng)壓實(shí)機（條形或圓形）、旋轉壓實(shí)機、馬歇爾儀獲得的樣品，以及現場(chǎng)取芯、鋪板試樣。LAPA-1車(chē)轍和疲勞測試的作用：在設計階段預測瀝青混合料的車(chē)轍和疲勞潛力；防止鋪設不合格的材料；監控工廠(chǎng)生產(chǎn)混合料質(zhì)量；鑒定瀝青混合料設計的質(zhì)量、節省開(kāi)支；加速性能測試。
Asphalt Mixture Road Performance Tester This system can hold three samples at a time, which can test the samples obtained by vibration compactor (strip or round), rotary compactor, Marshall instrument, and on-site coring and planking samples. . The role of LAPA-1 rutting and fatigue testing: predicting the rutting and fatigue potential of asphalt mixtures during the design phase; preventing the laying of unqualified materials; monitoring the quality of plant production mixtures; identifying the quality of asphalt mixture designs and saving expenses; accelerating performance test.
瀝青混合料路用性能試驗儀本方法描述用LAPA-1測試瀝青混合料疲勞特性的測試步驟。
Asphalt Mixture Road Performance Tester This method describes the test procedure for testing the fatigue characteristics of asphalt mixtures with LAPA-1.
