Multiquip C-30HD operation manual Concrete MIX DESIGNS-SCREEN ANALYSIS- Terminology, Definitions

Page 19

CONCRETE MIX DESIGNS-SCREEN ANALYSIS- TERMINOLOGY

The following information has been prepared to assist in the selection of concrete mix designs in certain areas where the use of concrete pumps is a new industry.

The result of years of experience by many concrete pump users and aggregate suppliers has proven the importance of certain requirements necessary to successful concrete pumping. The strength and quality of the concrete is relative to the cement/water ratio and the type of gradation of the aggregates used.

Special emphasis is given to the gradation of the fine aggregates, coarse aggregates sand and used in all pump mixes. Generally speaking, if the screen analysis of the local sand and rock conform to the A.S.T.M. specifications shown on Pages and 13 and the proper ratio of sand and rock are used in the mix, you can expect a pumpable mix.

If difficulty is experienced in pumping the mixes shown on Pages 11 and 12, consult your local aggregate supplier with this information and make the necessary adjustments.

CONCRETE MIX INFORMATION

DEFINITIONS

ONE SACK CEMENT (U.S.)-94lbs. (42.58 KG)

S.S.D.-Saturated Surface Dry: Meaning sand particles may be saturated with moisture but there is no free water on the surface.

OVEN DRY-meaning all the moisture is removed from the sand particle.

SLUMP-a measure of moisture consistency.

W/C SAND-washed concrete sand.

#4 GRAVEL or ROCK-3/8” PEA GRAVEL (1/2” MINUS)

#3 GRAVEL or ROCK-3/4” rock (1” minus)

POZZOLITH-Master Builders Admixture -(Pozz)

P.S.I.-compressive strength (Pounds per Square Inch)

DEFICIENCIES IN SIEVE ANALYSIS of AGGREGATES

The uniform gradation of sand and aggregate in the concrete mix is extremely important in all pumping operations. It is highly possible that the lack of certain sieve sizes may prevent pumpability. In some areas it may be necessary to make up these deficiencies by the addition of “blending sands” to the local sand.

GENERAL RULE-supplement to improve pumpability.

FLY ASH-use up to 15% of cement weight.

POZZOLIN-use up to 13% of cement weight.

C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 19

Page 18 Page 20
Image 19
Page 18 Page 20
Contents Concrete Pump Model C-30HD Page Heres HOW to GET Help 30HD UPS Ground Service at no charge for freight Parts Ordering ProceduresPerformance DimensionsHydraulic Drive Models Mechanical Drive ModelsSafety Instructions Important Hand Signals Pump MIX Guidelines General InformationSample Design MIX Page Pumping piston is forcing the material past ball 30HD HOW IT Works30HD HOW IT Works Operating Suggestions 30HD Operating InformationFollow these instructions carefully Pumpingtips Andtrouble ShootingWhen pumping vertically Clean UP Procedure Part a Part B Always think safety firstDefinitions Concrete MIX DESIGNS-SCREEN ANALYSIS- TerminologyDeficiencies in Sieve Analysis of Aggregates Sieve analysis-percent passing Concrete MIX InformationT.M. Standard Specification for Grading Aggregate 2749 27082775 2685Slumptest Procedure Items Found In the Items Number Column Explanation of Code in Remarks Column30HD Suggested Spare Parts STARTER-push in to start engine 30HD Control PanelPage 30HD Frame 30HD Concrete Pump Frame 30HD Gasoline Engine Control Positive Cable 30HD Diesel Engine Control 30HD Concrete Pump Diesel Engine CONTROL-C-30HD Page 30HD Manifold Assembly 30HD Concrete Delivery Replaces EM407 30HD Clutch Assembly ALL Machines Priorto S/N 960801 August Page 30HD Crankshaft Assembly 30HD Concrete Pump Crankshaft Assembly 156 SCREW, SET Half DOG Point 3/8-16X3/4 30HD Counter Shaft Assembly Counter Shaft 30HD Counter Shaft Assembly30HD Compensator Piston ROD 30HD Compensator Piston ROD 30HD Connecting ROD Assembly 20328 OLD Style 30HD Connecting ROD Assembly 20328 OLD Style 30HD Connecting ROD Assembly 20328T NEW Style 30HD Connecting ROD Assembly 20328T NEW Style 30HD Rocker Assembly 30HD Concrete Pump Rocker Assemblies 30HD Compensating Spring Assembly EM14805 30HD Return Spring Assembly30HD OIL System and Fuel System 30HD OIL System and Fuel System Position Location Fitting Location and Plastic Hose LengthPage 30HD Axle Installation 30HD Concrete Pump Axle Installation 30HD Hopper and Hood 30HD Hopper and Hood 30MG Scaled Down MANIFOLD/CYLINDER KIT Model C-30MG Page 30MG Manifold Assembly C-30MG 30MG Manifold Assembly C-30MG 30MG Piston Head Components 30MG Piston Head Components 30SP Optional Screw Conveyor Andtorque Limiter Model C30-SP Screw Feeder Recommemded Shotcrete System General recommendations S/J Coupling30HD Shotcrete Accessories 30HD Concrete Pump Shotcrete Accessories Ball and Seat Replacement Procedure 30HD Service ProceduresPreventive Maintenance Clutch Lining Replacement for EM14320 Clutch Assembly onlyJolter Spring No Longer Available EM20714 EM20715 Adjustment30HD Service Information Remote Control 30HD Remote Control Schematic 30HD Remote Control Schematic Tighten jam-nut to prevent eye bolt from unscrewing ObsoleteOverload Safety Device Installed on Screw Conveyor Shaft 30HD Service Informationtorque Limiter Model C30-SP only30HD Service Information Bearing Installation EM20364 EM20333 EM20816 EM104Illustration represents the oil pressurized system oil pump 30HD Service Information Return Spring Adjustment Procedure 30HD Service Information Belt and Chain Adjustment Working Loads Installation and Drive AlignmentLubrication Pin Removal Installation of CoversidesInstallation of Spring Locks and Cotterpins When Installing Chain Drives on EquipmentTerms and Conditions of Sale Parts Multiquip INC

C-30HD specifications

The Multiquip C-30HD is a powerful and versatile concrete saw designed for a variety of cutting applications. This robust machine is particularly well-suited for heavy-duty tasks, making it a favorite among contractors and construction professionals. With a focus on performance, ease of use, and durability, the C-30HD stands out in the competitive market of concrete cutting equipment.

One of the standout features of the C-30HD is its engine. Powered by a reliable Honda GX390 gasoline engine, it delivers impressive power and ensures smooth operation during cutting tasks. The engine is designed for fuel efficiency and ease of maintenance, allowing users to minimize downtime and extend the saw's lifespan.

The C-30HD also comes equipped with a heavy-duty, adjustable frame that provides stability and precision during operation. This adjustable frame allows for depth control, enabling operators to cut to various depths depending on the requirements of the job. Its ergonomic design ensures comfortable handling, which is crucial when working on large or extended projects.

In terms of cutting capabilities, the C-30HD features a 30-inch blade capacity, allowing it to tackle substantial concrete slabs with ease. It accommodates various blade types, enabling versatility in cutting different materials like asphalt or brick. The saw is also designed with a water delivery system that helps minimize dust and cooling the blade, improving cutting efficiency and prolonging blade life.

Technologically, the C-30HD integrates advanced safety features to enhance user protection. This includes a blade guard that shields operators from potential hazards during operation. Additionally, the saw's controls are intuitively located for easy access, promoting safe operation and reducing the risk of accidents.

Another noteworthy characteristic of the C-30HD is its transportability. Equipped with sturdy wheels, this concrete saw can be easily moved around job sites, enhancing productivity and flexibility. Coupled with its rugged construction, the C-30HD is built to withstand the demands of tough working environments, ensuring longevity and reliable performance.

In summary, the Multiquip C-30HD concrete saw combines powerful performance, innovative features, and robust design. It meets the needs of professionals in the construction industry seeking high-quality concrete cutting solutions. With its remarkable engine, adjustable frame, and safety technologies, the C-30HD is a top choice for heavy-duty cutting tasks. Whether tackling large projects or intricate cuts, operators can trust the reliability and efficiency of the C-30HD to get the job done.
Top Page Image Contents