McLanahan

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McLanahan offers a wide selection of Impact Crushers for quarried limestone and semi-abrasive minerals. McLanahan draws from the 75 years of field experience with the Universal line of Impactors, which includes impact breakers and Andreas-style impactors. At present, we offer the New Holland-style primary impact breaker and the MaxCap X-Series Primary, providing a means to reduce quarry shot and ROM materials at rates exceeding 2,000 tph. We also offer VersaCap P-Series Impactors for heightened portability as a primary crusher. The VersaCap R-Series is also designed to accept large top size in highly friable materials, and will allow for single crusher reduction to 1-1/2” minus product. In the case of limestone and similar materials, we offer the NGS Impact Crusher as a secondary impactor, which is capable of producing construction grade aggregates or minerals of like size. These five lines of horizontal shaft impactors are available in multiple sizes to provide us the ability to offer the most appropriate crusher for your specific application. 

Concrete Batching Plant |Precast Concrete Production Suppliers In Jeddah| Stationary Ready Mix Concrete Plant

precast concrete production suppliers in jeddahWe are a family owned business and have been involved in supplying ready-mix concrete batching plants and equipment to the industry over the last 25 year Our turnkey solutions include all the components of the systems we build, completely customized starting from the detailed analyses of the functional areas of the site, involving the plant ...

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Rainbow Concrete is a leader in the ready-mix industry, providing Northern Ontario with quality concrete and concrete products since 1952. Locally owned and operated, Rainbow Concrete is proud to have all its ten ready-mix and shotcrete plants, as well as its mobile plants fully certified by the Ready Mix Concrete Association of Ontario (RMCAO).

Concrete Paving Slab Press with Mixing Plant A9341 **SOLD

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MATERIAL SPECIFICATION FOR CONCRETE

design number, primary plant location and back-up plant, intended mix use, air and slump range for each intended use. The quantity of chemical admixtures shall be at least the specified minimum dose in conformance with OPSS 128. 1350.04.01.02 Ready Mix Concrete Operation or Mobile Mix Concrete Operation

Concrete Plant Precast Technology

Four mixing stations are equipped with planetary mixers of type TPZ 3,750 with an output rate of 2.5 m³ per batch, one mixing station with a Teka high-performance Turbine Mixer THT 1,500 with a maximum output rate of 1.0 m³ per batch for the production of colored concrete.

Central Mix CONCRETE Batch Plant

A central mix plant is ideal for large volume ready mix producers, concrete products and precast operations, on-site concrete production, and high specification mass concrete projects. Any concrete producer that values delivering a high quality and consistent end-product should consider the benefits of a central mix concrete batch plant.

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Full-scale fatigue tests of precast reinforced concrete slabs

Oct 01, 2015 · In the present paper, a new, simple and relatively inexpensive laboratory test procedure on precast reinforced concrete slabs for high-speed slab track systems is proposed, consisting in a three-point bend fatigue tests on full-scale slabs.

Concrete technology for a CONCRETE future

Witech mixing & batching plant WITECH MIXING AND BATCHING PLANTS Witech is specialized in the project and production also of mixing and batching plants, with high technological level, as well as in the reconstruction and modernization of the existing mixing and batching plants following the client’s requirements. The Witech M&B plants are ...

Best Management Practices in Citrus Production

Best Management Practices in Citrus Production Farhat Abbas • Ali Fares* Department of Natural Resources and Environmental Management, University of Hawaii, USA Corresponding author: * [email protected] ABSTRACT There are growing concerns

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Batch Plant Installations, Complete Engineering

Our dedicated Parts Department can supply plant parts for all makes of concrete batch plants. Contact the parts office at 717-351-1100 for help sourcing the parts you need to keep your plant running. Contact the parts office at 717-351-1100 for help sourcing the parts you need to keep your plant running.

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Hollow Core Slab Factories; Precast Concrete Batching Plants; Systems for Precast Elements; Vibro Demoulding Machines; Concrete Ready mix. Concrete Pumps; Concrete Transit Mixers; Ready Mix Concrete Batching Plants; Crushers. Mobile Crushers; Static Crushers; Road Development. Asphalt Mixing Plants; Base Stabilization Plants; Slip-Forming ...

Concrete Calculator

Concrete can be purchased in multiple forms, including in 60 or 80-pound bags, or delivered in large amounts by specialized concrete mixer trucks. Proper mixing is essential for the production of strong, uniform concrete. It involves mixing water, aggregate, cement, and any desired additives.

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Used Concrete Batching Plants Our current inventory of used ready mix and precast concrete plants available for purchase. If there are no listings below, it’s possible there is still availability and we just haven’t had the chance to update the website yet.

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Creating Colored Precast Concrete

However, concrete can be so much more than just plain gray; in fact, a whole world of color is possible. We usually refer to precast concrete that will remain exposed when in its final position as architectural precast concrete, and it can be made in just about any color, texture and finish imaginable.

Batching and Mixing Plant E9-105 - Elematic precast technology

Batching and Mixing Plant E9-105 is a tower type concrete mixing plant designed to be part of the automated concrete delivery system in EDGE level precast production. It is equipped with twin shaft mixer producing 105m3/h of concrete.

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QUIKRETE® 5000 Concrete Mix | QUIKRETE: Cement and Concrete

QUIKRETE® 5000 Concrete Mix (No. 1007) is a commercial grade blend of stone or gravel, sand and cement specially designed for higher early strength. Ideal for cold weather application. Achieves 5000 psi after 28 days.

Handling of Concrete

May 20, 2014 · KAS-2012 59 COMPACTION OF CONCRETE Compaction is a process of expelling the entrapped air inside concrete mass. During mixing, transporting & placing the concrete, air gets trapped in concrete mass. If this air is not removed, concrete will not get strength. 5 % of air voids reduces strength by 30 % 10 % of air voids reduces strength by 50 % ...

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Batching and Mixing Plant P7-40 - Elematic precast technology

P7-40 is a small, mobile and modular concrete mixing plant designed to be part of the automated concrete delivery system in the precast production. It is equipped with twin shaft mixer producing 40m3/h of concrete for precast production.

Mixing and Batching Plant Archives

Batching Plants Mixing and Batching Plant Mobile Units Silos Turnkey Solutions Cormac Engineering offer the Frumecar range of concrete batching plants with outputs from 10 to 250 metres per hour. The plants are compact and mobile...

Frequently Asked Questions

If I am trying to reduce my fines in a limestone quarry, should I use a Jaw Crusher instead of a Primary Impactor?

While it is true the Jaw Crusher will create less fines (say, minus 3/16”), it also creates more plus 1-1/2” material to be crushed downstream at the secondary and tertiary stages. Regardless of the type of crushers used downstream, the amount of fines generated in those closed circuit operations will actually be greater than any increase caused by a primary impactor. 

How do the power consumption figures compare between Primary Impactors like the MaxCap and the VersaCap?

Since one employs an expansion chamber over the rotor and the other doesn’t, the MaxCap will perform at ½ hp per ton, while the VersaCap averages ¾ hp per ton. Electric motors will only draw as much power as the crusher needs. However, the theoretical difference in a 500,000-ton quarry or mine is about 90,000 kW/hours. That reflects only the primary crusher, not the added power it takes downstream to also recirculate 30% more rock through the secondary circuit.

Why do I see so many Impact Crushers in concrete recycling when the material is 100% abrasive?

Unlike sedimentary stone, e.g. limestone or sandstone, weathered concrete is very soft and friable. Most concrete pavement is less than 1,500 psi and pre-broken into slabs 2’ to 3’ square.  Due to the friability, they shatter quickly into particles 3” and smaller on the initial pass through the impactor. The hammer wear life tends to be far shorter due to the abrasion, but recirculating loads are minimal for base material. In the case of a mobile contractor, single crusher systems are far more economical when relocating on a regular basis. 

What is the main difference between the VersaCap P-Series and the R-series? Are they both primary impactors?

Yes, they are both primary impactors. In fact, the only real difference is the rotor assembly. The VersaCap P-Series is a primary impactor that accepts 30” boulders in quarried stone, and generates a nominal 6” minus. The VersaCap R-Series uses the same housing, but the rotor is designed specifically for large, highly-friable materials like concrete rubble. In the case of recycling concrete, the R-Series rotor is lighter in weight for portability, and the hammers are thinner, reducing the cost of spent hammers. 

Under what circumstances should I consider automation for adjusting an Impactor?

The MaxCap Primary Impactor comes standard with fingertip control. While not fully automated, it is designed to integrate into any programmable logic controller based system. As for the other impactors, the vast majority of operations will be fine with a simple shim adjustment, which requires no automation. However, the semi-automatic system on the VersaCap and NGS Impactors essentially requires only an electrical control over the hydraulic system, which would be running during operation. Once you find the right setting, and plan to stay consistent, you can add shims, and shut off the hydraulic power unit. If you are anticipating the need to change settings on a regular basis, the full automation system with PLC and touch screen is available and capable of being integrated.