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WHY ASPHALT EXPERT SYSTEM ®©?
IF YOU WISH, YOU ARE ABLE TO EFFICIENTLY STOP ABUSING BOTH THE LOGIC AND THE RESOURCES IN THE ASPHALT FIELD! (Please, find out more...) EMPLOY ASPHALT EXPERT SYSTEM ®© RIGHT AWAY.
ASPHALT EXPERT SYSTEM ®© has been developed as the logical answer to numerous, costly, unresolved issues in the field.
Safe universal rational and efficient solutions are gradually
propagating throughout entire asphalt industry replacing locally
acquired experience
and outdated dogmas.
The ASPHALT EXPERT SYSTEM ®© developers have been fully aware of and inspired by the following:
- ‘Anything we do can be done better and less expensive, but WE MUST KNOW HOW’ (This Is Kernel Of Optimization Principle).
- Gross majority of the asphalt international community is NOT AWARE AT ALL of the RATIONAL ASPHALT TECHNOLOGY ®© Postulates, and THE FACT that THE LAWS that Regulate Asphalt Composite Material Behavior have been already discovered and formulated more then 20 years ago...and do ‘work like charm’.
- The newest generation of ‘Non-Linear Optimization Technologies’ makes possible the ‘fine-tuning’ solutions where the total error margin can be reduced to acceptable 0.2-0.4 in volumetric %.
- An average HMA mix design is influenced by extraordinary number (145 - 185) of influential parameters. Most of them are unnoticed, played down, and ignored. Some bear substantial critical potential. Human mind cannot successfully process ALL of them.
Therefore, the logical step forward was development of a unique
software package capable of successful processing of ALL INFLUENTIAL
PARAMETERS, meeting at the same time various demands and important
challenges. Such advanced expert system, enriched by outstanding
elements of artificial intelligence, entered low profile life in 2003.
Since then, the software has delivered and continue to deliver to its
international users the safe, real time, workable solutions, which
prevent critical scenario development, optimize resources, and cover
all key issues in the field.
MISTAKEN RATIONAL
EVERYWHERE AROUND US are fully-functional
'heavy-duty' HMA layers (pavements) suffering neither surface nor
structural damage after 40-50 years in service despite of multifold
increase in tires contact pressure (TCP) and frequencies of industrial
traffic - ALL under extreme T amplitudes, and in unfavorable moisture
conditions. Such mixtures haven't been modified and no additives were
used. They were subject to 'zero' maintenance.
The
'co-existence' of perpetual layers / pavements next to the obvious and
less obvious ASPHALT FAILURES - probably designed and constructed by
the same locals / ’distinguished experts’ - is the utmost proof of the widespread erroneous engineering logic and judgment skills.
Such mistaken logic inevitable leads toward further unbalanced
approach and over-simplification in asphalt constituents and asphalt
composite material characterization pushing aside the key issues -
the 'spatial packing & competition for space among constituents'
under varios compaction modes and T conditions - due to inability to generate universal solutions.
One or several 'trendy' blame factors are regularly chosen and
'investigated' in well financed research programs. The favorite is some
kind of dynamic testing of, in fact, physically 'undefined' mixtures
exposed to accelerated heavy loads & aging conditions in order to
figure out 'phenomena' such as rutting, fatigue cracking, etc. A
modified binder seem to be the favorable research constituent which in
combination with VTM should give the answer for premature aging and
more 'reasons' for introduction of even more expensive modifiers.
Further, the blaming list wouldn't be completed without so called
'PERFORMANCE BASED SPECIFICATIONS', as a big contributive part to a new
round of mostly futile R&D... ALL OF ABOVE MENTIONED FADES OUT AND IS REDUCED TO THE RIGHT MEASURE WHEN FACED WITH RATIONAL-LOGICAL ARGUMENTATION. SUCH ARGUMENTATION DOMINATES BOTH THE NATURE AND THE SUCCESSFUL MATERIAL SCIENCE AS WELL.
ONLY TRUE KNOWLEDGE OF ASPHALT COMPOSITE MATERIAL STRUCTURE GIVES ALL NEEDED ANSWERS:
Deeply rooted idea in the minds of engineers and researchers is that Asphalt Composite Material is nothing else but a ‘cumulative mistake’. For most the asphalt composite material has very unpredictable behavior and in average short life cycle. It is TRUE that most frequently and widely used standard testing is not enough accurate and vulnerable to errors when ‘in hands’ of incompetent personnel.
RATIONAL ASPHALT TECHNOLOGY ®© Testing Guidance Solves All The
Issues Occurring In The Lab That Seriously Affect: QCQA, Cost Control,
Production, Construction, Even Bidding Prospects. In addition, some 'in house', control / reliable replacement testing is suggested for the user own enormous benefits.
ASPHALT EXPERT SYSTEM ®© Offers To The Professionally Trained User The Privileged Power Of Being The UNIVERSAL Solver.
The Customized Solution At Desired Level In Any Given Situation Under Ever Changing Conditions Anywhere In The World.
MARVELS OF TRUE LOGIC!!!
KEY ISSUE IN ASPHALT COMPOSITE MATERIAL STRUCTURE SOLVED!
The performance of the HMA - the response to traffic
and environmental loads depends on structural 'spatial' properties of
the functional constituents. It is especially evident in the failure
states (rutting, cracking). Durability is DIRECTLY RELATED TO THE
MIXTURE RESPONSE TO LOADS. Most of comprehensive strength and
resistance to movement comes from skeletal part of aggregate. (Look,
for a example, at nature way of structural composing of rounded
aggregate in a river bed). For engineers, the experience based on
'handling' of local materials is just an experience. It is insufficient
for acquiring the universal knowledge on successful aggregate grading
design. In fact, lack of RELIABLE GUIDANCE on EFFECTS OF
SKELETAL GRADATION (MINERAL MATERIAL minus FILLER MIX) ON MIXTURE
PROPERTIES / PERFORMANCE is THE PRIME CAUSE OF FAILURES IN ASPHALT
FIELD.
I From the beginning of asphalt mixture design it was desired to UNDERSTAND LAW
OF ‘SPATIAL’ PACKING (packing, interlocking, re-granulation,
densification under various compaction modes) OF SKELETAL AGGREGATE PART
and its measured interaction with other FUNCTIONAL VOLUMETRIC
CONSTITUENTS - binder mortar and the accessible voids - in ANY STATE
DURING COMPACTION and ESPECIALLY at DENIED COMPACTION STATE. (Of
course, the impact of the other aggregate properties such as shape,
texture, interactivity, origin had to be also taken into account either
direct or indirect way.)
Until 23 years ago that has been a mystery for a group of finest
asphalt minds working on the crucial issue in the asphalt science - the
kernel of researchers representing the International Asphalt Expert
Alliance. By Collecting, Investigating, and Closely Correlating almost
thousand of asphalt core samples taken from various worldwide locations
that have been showing uncompromised quality and long functional life
despite of combination of adverse / CRITICAL SERVICE CONDITIONS. Among
such in fact 'perpetual layers' the highest possible structural
composition correlations were found. In addition, the tremendous but an
easier job is done on comprehensive RATIONAL investigation of numerous
failure cases. Conducted 'Cause-Effect' studies also show the highest possible correlations in findings. All mentioned paved the way for substantiation of RATIONAL ASPHALT TECHNOLOGY ®© RATIONAL MIX DESIGN, COST EFFICIENCY, RATIONAL QCQA and/or PERFORMANCE CRITERIA.
II Next Logical Step was a DETERMINATION
OF THE ACCURATE BINDER CONTENT (functionally made of three parts:
absorbed, ‘free’ and bound in mortar sub-system) FOR THE SELECTED
SKELETAL STRUCTURE and adjustment of filler mix (FM) to meet the
performance criteria and the ‘man-made’ criteria such as state specs.
Bear in mind that every crude oil is different, so every asphalt is
different and will react differently in pavement over time. PRIME FOCUS
IN DENSE GRADED HMA DESIGN IS ALWAYS ON THE SKELETON (Think About
Unbound Layers First...) This functional optimum integration of
constituents excludes any 'excess'/ 'deficit' in relation to a by performance criteria selected binder ALL HAS BEEN SOLVED SUCCESSFULY!
By ALL CRITERIA, thousands successful designs and workable construction have followed worldwide.
BEYOND COMPETITION...
For any additional
information please do not hesitate to contact us...
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