Concrete Plants ASTEC. Roller Compacted Concrete and Cement Treated Base

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Dinah Johnston
5 years ago
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1 Concrete Plants ASTEC Portable RCC/CTB plant Roller Compacted Concrete and Cement Treated Base

2 ASTEC RCC / CTB PLANTS Available in 3 and 4 load configurations, Astec plants do not require auxiliary charging hoppers or charging conveyors eliminating that extra expense. CONTINUOUS BLENDING Materials are managed with Continuous Blending using variable frequency drives to deposit aggregates in layers of precise calibrated proportions, matching the mix design in each lineal foot of materials transported by conveyor into the twin shaft mixer. This pre-blending ensures a homogeneous mix that compacts quickly and reaches density to meet the specs of your project. Bin capacity of 30 tons each; 2-6 bin arrangements are available. WEIGH BRIDGE Belt scales with dual weigh idlers enable precise calibration of the aggregate bins. SERPENTINE TWIN-SHAFT MIXER Astec Serpentine mixers are built to ensure productivity and reliability, with production capacities of 300, 500, and 800 tons per hour. Shaft-driven, high-torque shearing action provides intense mixing for homogeneous concrete in the shortest mix times allowable. An integrated discharge conveyor, with 12 6 clearance for dump trucks is self-erecting within the mixer load. The self-contained high-pressure wash down system sweeps the interior of the mixer to reduce the labor costs of daily cleaning. With over 35 years experience, you can count on Astec Serpentine twin-shaft mixers to deliver consistent mix. ProFlo MIX WATER SYSTEM With Astec, water content control is the focus, not an afterthought. High precision mass flow meter controls add water to ensure a match with the target water-cement ratio so critical for consistent RCC or CTB. Optional sizes of surge water tanks, Heatec Firestorm directcontact water heaters, and Heatec chillers are available. Self-contained solutions save footprint and ensure a perfect match for productivity and profitability. SELF-ERECTING CEMENT SILO The silo features a mass weigh control system with loss-in-weight feeding. Air-bag suspensions give the silo a smooth ride on even the poorest road conditions, and then retract to allow the frame to be lowered to act as the foundation on a properly prepared grade. CONTROL HOUSE A real control house, built by Astec, provides shelter for the advanced controls and puts the operator in perfect position to control the production. Self-contained and self-erecting, usually mounted on the gooseneck of the cement silo, the control house provides a central command center. Optional motor control centers house all switch gear are also available. WIRELESS RF CONTROL COMMUNICATION Astec plants use wireless control, eliminating control cables throughout the plant and reducing your mobilization cost. Each component load is wirelessly and seamlessly connected when you power up the plant. Spread-Spectrum manages an uninterrupted connection to one of 12 constantly supported frequencies to ensure robust performance.

ASTEC Roller compacted Concrete and cement treated base Plant The truly portable, self-erecting Astec RCC/CTB plant is superior to anything else available today.

3 ASTEC Roller compacted Concrete and cement treated base Plant The truly portable, self-erecting Astec RCC/CTB plant is superior to anything else available today. All component loads are self-contained, pre-wired, self-erecting, and require no cranes. With air-ride suspensions that self-retract to utilize the transport frame as the foundation for each load, Astec makes certain your mobilization cost is the lowest possible. Complete three-load plants and four-load plants are available with working capacities from 80 yd 3 up to 350 yd 3 for single mixers. Dual mixer arrangements are also available. For your peace-of-mind, Astec stands behind this plant with the best service and parts support in the construction equipment industry.

ASTEC serpentine TM MIXER Astec s twin-shaft Serpentine mixer quickly incorporates materials into a consistent, uniform mix.

The Serpentine paddle design alternates 90 with 45 paddles to drive material across and down the mixer.

nozzles inside the mixing chamber to thoroughly wash down the interior, allowing all materials to be flushed through the discharge gate.

4 ASTEC serpentine TM MIXER Astec s twin-shaft Serpentine mixer quickly incorporates materials into a consistent, uniform mix. Material enters through the water curtain and is then mixed using the Astec Serpentine paddle design to achieve a uniform blend. The Serpentine paddle design alternates 90 with 45 paddles to drive material across and down the mixer. The finished material then exits the mixer at the end of the run and a proprietary automated wash-down system utilizes pre-positioned nozzles inside the mixing chamber to thoroughly wash down the interior, allowing all materials to be flushed through the discharge gate. The wash-down can be activated manually or automatically. Material Enters Mixer Water Curtain Access Doors Rotating Wash Down Nozzles Mixer Liners Mixing Paddles Shaft Finished Mix Exits Mixer

5 TM ProFlo WATER AND ADMIXTURE MANAGEMENT Astec designed a proprietary system to manage water and admixtures on a continuous basis. Eliminating weighed water systems and pneumatic dosing of admixtures, the Astec ProFlo TM system uses coriolis mass-flow meters, with no moving parts, to deliver metered liquids at accuracies of ± 0.25% regardless of the production rate. Astec plants use a water curtain, with nozzles encircling the dry material inlet of the twin shaft mixer, to ensure that metered water showers every lineal foot of pre-blended aggregates and cements. This process precisely controls and adjusts on a real-time basis the cement paste volume, maximizing hydration, and matching the Water-Cement ratio of your mixes. Mix Material Inlet SIDE VIEW Admixture Totes Coriolis Flow Meter Water Curtain Nozzles Encircle the Inlet Pump with VFD Drive Mix Water Tank TOP VIEW

6 ASTEC, INC. an Astec Industries Company 4101 JEROME AVENUE CHATTANOOGA, TN USA FAX astecinc.com

Pulse Jet Baghouse ASTEC PULSE JET BAGHOUSE. for Asphalt Facilities

Pulse Jet Baghouse ASTEC PULSE JET BAGHOUSE. for Asphalt Facilities Pulse Jet ASTEC PULSE JET BAGHOUSE for Asphalt Facilities ASTEC PULSE JET BAGHOUSE FOR ASPHALT MIXING PLANTS Astec baghouses deliver superior performance and efficiency, while helping your plant meet