WDW-LQ50/WDW-LQ100,50kN/100kN asphalt mixture testing machine at high and low temperature

1Introduction

1) tension, compression, bending testing and researching for asphalt and asphalt mixture at high and low temperature of -15℃~+60℃.

2) modified asphalt, elastomer modified asphalt, asphalt base, oil asphalt, minge asphalt, hydraulic oil asphalt, emulsified asphalt, hot mixed asphalt mixture, cool mixed asphalt mixture, modified asphalt mixture, flexible base, half rigidity base, rigidity base, cold mixed asphalt mixture, asphalt pavement, allowable tensile stress, tensile strength structural coefficient.

2 Important test:

1) T04713 - 2000 asphalt mixture single axial compression test(cylinder method: ¢100*100): deflection elastic modulous(20℃±0.5℃), stress of compression elastic modulous(15℃±0.5℃), compression strength, ball shape supporting, movable pressing head, loading:0.1p -- 0.7p, loading speed, variation coefficient.

2) T0714 -- 1993 asphalt mixture single axial compression test(prismoid 40*40*80): LVDT transducer, Max. breaking load, compression stress, strain and deformation, compression breaking modulous, asphalt mixture cracking property at low temperature(-10℃±0.5℃).

3) T0715 - 2011asphalt mixture bending test(15℃±0.5℃): (prismoid method: 40*40*80) bending test, asphalt mixture tensile property at low temperature(-10℃±0.5℃), LVDT transducer for displacement, beam type of suppportor/movable pressing head, deflection in the middle, Max. Breaking load, curve of deformation, bending modulous of elastic period.

4) T0716 - 2011 asphalt mixture ripping test (15℃±0.5℃): cylinder (¢100*40, ¢101.6*63.5mm, ¢150mm*40mm), crack strength test with asphalt mixture at low temperature(-10℃±0.5℃), vertical deformation, horizontal deformation 0.001mm, curve of load -- horizontal deformation, curve of load - vertical deformation, split tensile strength, tensile strain, breaking modulous, possion ratioμ, Max. Load, sepcific value of vertical deformation and horizontal deformation, total deformation at vertical direction.

3  Important specification

No.	Item	Specification
1	load capacity	50kN / 100kN
2	Grade of testing machine	Grade of 0.5 / 1
3	measure range of loading	Grade 0.4% - 100%F.S(0.5) /1% --100%F.S(grade 1)
4	relative error of indicating value	±0.5%grade (0.5) /±1.0%(grade 1)
5	resolution of load	1/±300000F.S(resolution is not changed in whole stroke)
6	range of deformation	0.2% -- 100%F.S
7	adjusting range of speed for loading	0.005% -- 5%F.S/S
8	control precision of speed of loading	When speed is <0.05%F.S，between ±1% of setting value. When speed is ≥0.05%FS，between ±0.5% of setting value.
9	adjusting range of speed for deformation	0.005 -- 5%FS/s
10	control precision of speed for deformation	When speed is < 0.05%FS/s，between ±1% of setting value When speed is ≥0.05%FS/s，between ±0.5% of setting value
11	resolution of deformation	0.001mm
12	adjusting range of speed for displacement	0.001 -- 600mm/min
13	,, control precision of speed for displacement	Between ±0.2% of setting value
14	control range of constant loading,strain,displacement	0.5% -- 100%F.S
15	control precision of constant loading, strain, displacement	When setting value is ≥10%F.S，betwee ±0.5% of setting value, When setting value is <10%F.S，between ±1 of setting value
16	moving stroke of transom	1400mm / customized
17	effective testing span	610mm / customized
18	Voltage(reliable landing)	Testing machine: 220V±10%, 50Hz environmental chamber:380V±10%, 50Hz
19	rate	2.0kW+7.0kW
20	Size (LWH)	1080*2100*2320mm
21	weight	1800kg
high precision environmental chamber for high and low temperature (moving type for long time test)
22	working temperature/ precision of temperature	-15°C -- +60°C/±0.5 °C
23	heating/refregiration /cooling mode	Resistance wire heating/(high grade of compensation), liquid nitrogen injection, air cycling
24	warming/cooling time and speed	RT+10°C-- 60°C/40min, RT+10°C-- -15°C/20min
25	regulator of temperature	Intellgent PID / displaying sensitivity 0.1°C/ temperature is not overshoot, fluctuation is small
26	size of woring room	450*500x*400mm /customized
27	type of container	Made of stainless plate，front opening，with observing window，light in container.