Liquid Warm-Mix additive [ECON WM1-200PL]
- This product can be used for wide temperature range from 100℃ to 130℃. At the same time,
economic benefits from energy saving and the reduction of greenhouse gas emissions are also achieved.
Warm-Mix asphalt additives of NH Corporation can lower the working temperature by 30℃ while maintaining the quality as good as hot-mix asphalt mixture.
This product can be used as Hot-Mix asphalt mixture, ECOM WM1-200PL has the function of anti-stripping.
How to use | Storage | Physical properties | |
|---|---|---|---|
Test item | Test result | ||
When applying ECON WM1-200PL, utilizing a specially designed feeding device can be very good for workability. | Please keep at 0 ~ 30℃ | Amine value | 85~115mgKOH/g |
Viscosity(25℃/CPs) | 1000 ~ 3000 | ||
Specific gravity(25℃) | 0.93 ~ 0.99 | ||
Appearance | Yellow, liquid viscous | ||
Flash point | > 190℃ | ||
● Performance evaluation of ECON WM1-200PL
-TSR Test & Hamburg Wheel Tracking Test
▶ The test is based on KS F2396(Standard practice for recovery of asphalt from solution using rotary evaporator)
▶ The test of tensile strength from external shock to mixture. (moisture & unpollinated treatment)
▶ The mixtures which are used for surface and middle layer have to be over 80% of TSR. If they are not on that spec, anti-stripping additive must be used.
● DIT Test (Dynamic Immersion test)
▶ This test is based on European Standard (EN-12697-11). Determination of the affinity between aggregate and bitumen.
▶ The method of test : Using the coated aggregates put into 25℃ water, and spin on 60 rpm for 6 hours and 24 hours. Check conditions of aggregates.
▶ If they are under 50%, anti-stripping additive must be used. (Standard of Ministry of Land Korea)
● Construction case of Warm-Mix [ECON WM1-200PL] I
● Construction case of Warm-Mix [ECON WM1-200PL] II
- Daegu Metropolitan Facilities Management Corporation
▶ The pulling site, where has big traffic is chosen by Daegu Metropolitan Facilities Management Corp. The reason is Warm-Mix additive has a function of anti-stripping.
▶ Pulling time :: 6 hours 30 minutes.(Started at 22:00 on 24th, Ended at 05:00 on 25th)
▶ Amount of using Warm-Mix additive : 72Kg (Dosage : 0.6% of asphalt)
● The expectation and environmental effects of ECON WM1-200PL
-Environmental effect of ECON WM1-200PL
▶ For road pavement, compared to Hot-Mix asphalt concrete when Warm-Mix with NH's additive.
There is reducing effect of NOx(nitrogen oxides), SOx(Sulfur oxides) and fine dust in the air.
▶ In Korea, there is reducing effect of 73.4% carbon monoxide, 72% nitrogen oxide and 41.7% sulfur oxides when Warm-Mix pavement.
▶ In foreign, there is reducing effect of 77% fine dust when Warm-Mix pavement.
-Reduction of Effluent gas
Effluent Gas | HMA (Hot Mix Asphalt) | WMA (Warm Mix Asphalt) | Reduction Ratio(%) |
|---|---|---|---|
CO2 | 3.2 | 1.9 | 40.7(↓) |
CO(ppm) | 983 | 262 | 73.4(↓) |
NOx | 75 | 21 | 72(↓) |
SOx | 60 | 35 | 41.7(↓) |
Fuel(l/ton) | 9.3 | 6.3 | 32.3(↓) |
● Comparative analysis between Liquid type and Powder type additives
Division | Liquid Warm-Mix additive (NH) | Powder Warm-Mix additive | ||
|---|---|---|---|---|
Input Method | Plant mix | Needed injection equipment.(about ＄13,000), Input A/P measuring tank | Plant mix | Needed exclusive silo(around ＄40,000), |
A/P Pre-mix | Applicable(Hyundai Oil bank, GSC : now on testing) | A/P Pre-mix | Non applicable | |
Input | 250 ~ 300g per 1ton of asphalt concrete | 1KG per 1ton of asphalt concrete | ||
Economic feasibility | Price : 9,000won/KG, | Price : 3,100won/KG, | ||
Working environment | Reduction effect of 77% fine dust | Powder state with lots of dust Poor working environment | ||
Usability | Ease of use when applying to Pre-mix | None applicable to A/P Pre-mix | ||
Performance | Liquid type additive has better jet force than powder type. | Powder type has worse get force than liquid type. | ||