Summary
  This instrument is designed and made as per T 0711-2011 and ASTM D2041 Standard Test Method for Theoretical Maximum Specific Gravity of Bituminous Mixtures(Vacuum process) in JTG E20-2011.It is suitable to determine the theoretical maximum specific gravity of bituminous mixtures by vacuum process. It is used to design the ratio of bituminous mixtures, survey the road condition or calculate the void ratio and compactness of road construction.It is not available to determine the lacunose bituminous mixtures which water absorption overs 3%.

 

I. Main technical features
1. It adopts single chip machine technology to vacuumize, shake, fill air and relieve pressure automatically.
2. Equipped with a high-accuracy absolute pressure sensor, the negative pressure can reach 3.7 kPa±0.3 kPa.
3. The working status of the vacuum pump can be reflected by a vacuum meter.
4. It equips a water buffer device to prevent the water in the negative pressure container from flowing into the vacuum
    pump.
5. It can determine two samples at the same time.Test efficiency is high.The structure is reasonably designed. It is easy to
    use.

 

II. Main technical specifications
1. Power supply：      AC(220±10%)V, 50Hz.
2. Volume of vessel：    4000ml×2
3. Power of vacuum pump：  160W
4. Negative pressure：   3.7 kPa（27.75mmHg）.   Allowable bias is ±0.3 kPa.
5. Power of shaking machine： 30W
6. Dimension：   510mm×520mm×380mm              

 

III. Optional accessory
1. Constant temperature water bath：   HWY-1 Low-temperature water bath

 ISYD-0711A Bituminous Mixtures Theoretical Maximum Specific Gravity Tester Accessories and Documents List

No.	Name	Unit	Qty	Memo
1	SYD-0711A Bitumen Mixtures Theoretical Maximum Specific Gravity Tester	Set	1
2	Negative pressure container（4000ml）	Piece	2	Installed on machine
3	Sealing ring	Piece	2
4	Fuse 3A（Ф5×20）	Piece	2
5	Glass cover-plate	Piece	1
6	Quick-plug and connecting pipe（1 meter）	Piece	1
7	Operation manual	Piece	1
8	Quality certificate	Piece	1
9	Repair Guarantee	Piece	1

  
IISYD-0711A Bituminous Mixtures Theoretical Maximum Specific Gravity Tester's Reagent and Auxiliary Equipments 

No.	Name	Specification	Quantity	Memo
1	Asphalt solution		1 litres	Gasoline
2	Distilled water	Three grade	Some

Notes：
1The reagent and equipments for installing the instrument are supplied by end-users themselves.
2The usagemanagement and saving of poisonous and harmful reagentpls operate according to the relative principle.
3PLS read the operation manual and industry standard before using the instrument.