SG

Product Information

What is ASCON?

“Ascon” is an abbreviation for asphalt concrete. It is called asphalt, asphalt mixture, asphalt concrete, hot asphalt mixture (Collective Standard), and HMA(Hot Mix Asphalt).
Ascon is an asphalt mixture that is mixed aggregates with asphalt binder and additives. It is mainly used as materials of pavement for road and parking lot, etc. It is classified according to purpose, function and pavement mathod.

Classification by pavement construction method

General asphalt pavement / Modified asphalt pavement / Reclaimed asphalt pavement

Classification by function

General pavement / Color pavement / Non-slip pavement / Fluid-resistant pavement / Drainage pavement / Porous pavement(sidewalk, bicycle path, etc.) / Semi-rigid pavement

Classification by place

Road pavement / Sidewalk pavement / Airport runway pavement / Parking lot pavement / Tunnel pavement / Bridge pavement / Park pavement / Playground pavement

Composition and types of Asphalt Pavement

Wearing course

Wearing course is a layer paved on surface course in order to prevent abrasion in cold environment and slip in general environment.

Surface course

Surface course distributes traffic loads to the lower layers and prevents rain from permeating the lower layer. It also provides friction between the tires.

Binder course

Binder course(Intermediate course) is not necessary for pavements but it corrects unevenness of base course and evenly distributes traffic loads to base course. BB-4, MC-1 and WC-5 are used as materials according to the conditions such as types of surface and binder course, traffic, etc.

Base course

Base course supports the traffic loads on surface course.

Subbase course

Subbase course supports the traffic loads on base course. It also improves the durability of pavement by rapidly draining the rain which is permeated through pavement surface and the capillary water from subgrade.

Subgrade

Subgrade is a layer paved on the roadbed. It disperses the traffic loads and reduces the stress effects on the entire road.

Materials of asphalt concrete

Asphalt binder
Coarse Aggregates
Fine aggregates
Fillers

Asphalt binder

Asphalt binder, also known as bitumen, is a sticky and highly viscous liquid or semi-solid form of petroleum. Various asphalts, such as straight asphalt and modified asphalt, and additives are used depend on its purpose.

Coarse Aggregates

Coarse aggregates are the portion of aggregates retained on the 2.5mm(No.8) sieve. It refers to crushed aggregates, crushed slag and crushed gravel, etc. It should not contain impurities such as clay, silt, organic matter, etc.

Fine aggregates

Fine aggregates are the portion of aggregates retained on the 0.08mm(No.200) sieve after passing through the 2.5mm sieve. It refers to manufactured sand crushed from rocks, crushed stone screenings, natural sand or the mixture of them. It should not contain impurities such as dust, clay, organic matter, etc.

Fillers

Fillers are particles to lower the consumption of more expensive binder material or to better some properties of the mixture. It refers to crushed limestone, potland cement, calcium hydroxide, fly-ash, collected dust and the other mineral powders. It should not contain impurities such as dust, mud, organic matter and mass of particles.

Production Process of Asphalt Concrete

1 2 3 4

Facility name

Facility role

Aggregate dump site

Space for storing received aggregates by size

Cold bin

Space to classify and store aggregates according to size. Supply aggregate to the dryer according to the ratio of aggregates use

Horizontal Conveyer belt

Conveying aggregates discharged from cold bin to the dryer

Dryer

Heat the aggregates to remove moisture remaining in the aggregates and to make it a suitable temperature for mixing(About 175 ℃)

Dryer burner

A burner that heats the dryer using fuel

Baghouse filter

Remove dust generated, Other air pollution prevention facilities
-Carrying dust from the dryer to dust silo

Cyclone dust collector

Classification of dust by fine size

Bucket elevator

Carrying heated aggregate over vibrating screen

Vibrating screen

Classification of transported aggregates by size

Hot bin

Store aggregates classified by screen according to size

Weighing bin

Apply the materials coming out of the hot bin, filler and dust silo, asphalt tank are cumulatively weighed in each weighing tank

Mixer

Mix of weighed aggregates and asphalt binders

Filler silo

Space for storing limestone powder and slaked lime with dust in addition to aggregates to store the mixture in the mixer

Dust silo

Space for storing dust

Bucket elevator

Transporting filler and dust into a weighing tank using each bucket elevator

Storage bin

Space to store filler and dust before weighing

Asphalt tank

Storage for storing asphalt, It keeps at a constant temperature or higher and transports asphalt to the mixer through the weighing tank. Asphalt is mixed with the aggregates

Shipment

Directly loading a truck with the asphalt concrete and shipping it

Control room

The place where manages whole process of plant

Delivery Performance

Main Delivery Performance of Asphalt Concrete

Company

Location

Period

Quantity (ton)

CompanyIncheon · Seoul Regional PPS

LocationAnnal unit price contract for 2015

Period2015.06~2016.06

Quantity (ton)695,000

CompanyIncheon · Seoul Regional PPS

LocationAnnal unit price contract for 2016

Period2016.07~2017.12

Quantity (ton)618,000

CompanyIncheon International Airport Corporation

LocationThird party unit price contract

Period2015.04~2017.12

Quantity (ton)403,770

CompanyHyundai Engineering Co., Ltd.

LocationSecond outer ring road(Incheon~Gimpo), section 4-2 / Incheon logistics center and others

Period2016.08~2017.03

Quantity (ton)104,900

CompanyDaelim Industrial Co., Ltd.

LocationIncheon new port 1-1 container A terminal / ePyunhansesang Dohwa area

Period2015.06~2017.12

Quantity (ton)79,580

CompanyDonghwa E&C Co., Ltd.

LocationIncheon New Port B terminal construction

Period2015.10~2016.09

Quantity (ton)49,670

CompanyDoosan Heavy Industries & Construction Co., Ltd.

LocationSecond outer ring road(Incheon~Gimpo), section 4-1

Period2016.08~2017.03

Quantity (ton)46,660

CompanyDoosan E&C Co., Ltd.

LocationSecond outer ring road(Incheon~Gimpo), section 1-1

Period2016.04~2017.07

Quantity (ton)34,680

CompanySeohee Construction Co., Ltd.

LocationSiheung Mokgam

Period2015.05~2017.12

Quantity (ton)30,970

CompanyChinhung International Inc.

LocationMaagok housing, second area

Period2015.01~2016.04

Quantity (ton)24,640

CompanyHyundai E&C Co., Ltd.

LocationWestern underground highway / Sosa-wonsibog subway line, section 1 and others

Period2015.12~2017.12

Quantity (ton)19,800

CompanyYoobong Construction Co., Ltd.

LocationNew Airport Highway road construction

Period2016.05~2016.09

Quantity (ton)12,200

CompanyHanjin Heavy Industries & Construction Co., Ltd..

LocationIncheon north port hinterland complex

Period2015.05~2016.09

Quantity (ton)11,370

CompanyPosco Engineering Co., Ltd.

LocationYeongjongdo Stats ChipPAK Korea construction

Period2016.03~2016.09

Quantity (ton)9,740

CompanyTotal Bid and Others

LocationJongno central bus-only lane and others

Period2016.01~2017.12

Quantity (ton)540,000

TotalTotal

2,680,980

Ascon Research Center

We are leading the market with cost competitiveness and High-value products by operating the largest technology research center in ascon industry.

Ascon research center of SG is made of outstanding researchers and engineers who have a background and know-how in ascon and remicon industry. SG tries to keep the unrivaled technologies with the highest quality and creativity.

Main achievements

National policy research on development of ECO-ROAD