ASTRA: Genuine PMA Replacement
Surface Tech has introduced an effective alternative in a dry polymer form. Our proven technology is a Para-Aramid fiber introduced in dry at the mix plant. With a neat binder, Para-Aramid is the modifier that production contractor can control and is an effective way to manage the process (including 365-availability, no storage and ease of plant dosing) that increases performance and dramatically reduces your GWP impact per mix ton and no change to JMF. Not to mention is PMA performance really worth the built environment and health risks?
ASTRA: Better for the Environment
- Production of synthetic polymers is energy intensive
- Requires higher binder production temperatures when incorporating polymer modifiers
- Production and the construction of PMA mixtures requires increased temperatures
- Higher temperatures result in higher Global Warming Potential (GWP)
- GWP increases 5-6 Kg of CO2 per mix ton for every 6-degree PG (PM) grade bump
ARAMID provides no health concerns (VOC emissions)
COMPARE WET vs. DRY
PMA
- Producing and construction PMA mixtures requires increased temperatures
- Significantly higher embodied carbon content (Global Warming Potential)
- Higher temperatures result in higher green house emissions
- GWP increases 5-6 Kg of CO2 per mix ton for every 6-degree PG (PM) grade bump.
- SBS-modified asphalt binders use sulfur based cross linking agents
- Hydrogen sulfide H2S is created during the transportation and storage of SBS modified binders
- Hydrogen sulfide can cause a range of health issues dependent upon PPM exposure such as eye and respiratory irritation, headache, dizziness, and, in extreme cases, loss of consciousness and death
- Expands equivalent PG (of mixture) about one bump high & low per ASTM STANDARD of 2.1 oz per US Ton (65 grams/tonne)
- No change in mix temp. Temp tolerant and does not break down in HMA temps – melt point of 800° F / 425° C
- Enhanced flexibility and elasticity of the asphalt binder
- Improved resistance to temperature-induced cracking
- Increased resistance to rutting and deformation
- Low Carbon Construction Material GWP 0.6 kg of CO2 per mix ton
- Zero sulfur added to binder or mix
- No change to JMF or volumetrics
- Available 365 easy add to any plant, anytime
- Chemical (PPA) resistant
