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Water – a Precious Liquid; Pumps – a Precious Time Saver


The placement and pumping of 3,755 cubic yards (2,870 m 3) of concrete up to a lofty height of 146-ft (44.62m) or 178-ft (54.32m) above sea level is being handled by Premezclados del Norte, S.A.de C.V. (Premezcla2).

A one million cubic gallon elevated water storage and distribution tank, capable of supplying water in two cycles daily to 50,000 residents, is being pumped by a Putzmeister BSF 32Z.12L.

Construmac S.A.is the authorized Putzmeister dealer in Mexico and has been successful selling the versatility of the equipment’s Multi-Z boom configuration, which enables set up close to structures and allows reach in difficult-to-access areas as required with this application.

For the upper levels, the Putzmeister 32Z-Meter worked in a semi-stationery position, using only its hopper and a 5-inch pipeline to pump concrete.

5-inch (125mm) pipeline helped deliver concrete to the upper levels of the water storage tank.

The strength of the project's concrete ranged from 3555 psi to 5000 psi – requested slumps were between 3-inch and 7-inch with a coarse 3/4-inch aggregate.

Water – a Precious Liquid; Pumps – a Precious Time Saver

Putzmeister concrete pump helps water tank project flow smoothly

STURTEVANT, Wis. (May 1, 2005) – A vigorous population growth is expected in the city of Matamoros, Tamaulipas during the next 20 years. Matamoros borders Brownsville, Texas to its north with the two cities separated by the Rio Grande. The city’s anticipated growth impacts the demand for water services so a two-phase, 23-year planning project is underway to improve the water, wastewater collection and treatment infrastructure.

Part of the first phase is construction of a one million cubic gallon elevated water storage and distribution tank, capable of supplying water in two cycles daily to 50,000 residents. This project began in August 2004 and is being managed by Constructora Solezzi Treviño, S.A. de C.V.

The tank skeleton was constructed using pre-fab supports and metal forms made specifically for the project. The placement and pumping of 3,755 cubic yards (2,870 m3) of concrete up to a lofty height of 146-ft (44.62m) or 178-ft (54.32m) above sea level is being handled by Premezclados del Norte, S.A. de C.V. (Premezcla2). The company, owned by Engineer Ramón Sampayo Ortiz, is one of the most reputable construction and concrete production contractors in the region.

To accommodate the project, Premezclados del Norte is utilizing its recently purchased Putzmeister concrete boom pump model BSF 32Z.12L. Because of the ever-changing nature of work conditions encountered from one project to the next, Premezclados del Norte ordered a 32Z-Meter for its longer reach. Adding to the company’s present BSF 28Z.12L, it is the second truck-mounted pump they purchased from the authorized Putzmeister dealer, Construmac, S.A. with its seven locations throughout Mexico.

According to Architect Miguel Franco, Northeast Branch manager of Construmac, “The 32Z-Meter – with its greater 32 meter (105-ft) working range – allows the organization to be more competitive both financially and operatively. However, it still provides them the same superior quality, proven reliability, and technically advanced features as experienced with their existing 28Z-Meter.”

Miguel added, “Of special significance is the pump’s Multi-Z boom configuration for setting up close to a structure and reaching difficult-to-access areas along with its free flow hydraulics for smoother output. These special features among others were beneficial to this particular job and enable the contractor to stay a step ahead of the competition.”

For the tank’s walls in the lower levels, the unit pumped concrete up to its maximum 105-ft (32-meter) vertical height. From that distance upward, the 32Z worked in a semi-stationery position, using only its hopper and a 5-inch (125mm) pipeline to pump concrete to the upper levels. Maximum outputs were noted at up to 142 cubic yards an hour (109m3/hr). Using the pump in either setup offered the most time efficient and labor saving approach to placing concrete on this project.

In particular, the wireless radio remote proved especially valuable in this application. The operator was stationed on the same level as the end hose, which allowed him to both view and precisely control the rate of concrete output into the specially designed metal forms.

The strength of the project’s concrete ranged from 3555 psi (250 kg/cm2) to 5000 psi (350 kg/cm2). Requested slumps were between 3-inch and 7-inch with a coarse 1/2-inch aggregate.

According to Engineer Ramón Sampayo Zuazua, Technical Manager of Premezclados del Norte, “The quality of the first piece of Putzmeister equipment purchased as well as the excellent replacement parts and after-market service experiences were crucial when making a decision about purchasing a second unit.”

He added, “The technological advantages of the versatile Multi-Z boom, smooth free flow hydraulics, virtually interference-free wireless remote, and long lasting chromed cylinders of Putzmeister equipment fully justifies the investment, both the first and the second time."

Another important point emphasized by Engineer Sampayo Zuazua was the “incredible confidence in purchasing equipment from a brand committed to quality. Unlike other vendors in the market, Putzmeister has always endeavored to offer innovative equipment to which the most advanced technology has been applied.”

Project completion is anticipated by June 2005.

SPECS
General contractor: Constructora Solezzi Treviño, S.A. de C.V. – Matamoros, Tamps., Mexico
Concrete contractor: Premezclados del Norte, S.A. de C.V. (Premezcla2) – Matamoros, Tamps., Mexico
Ready-mix supplier: Premezclados del Norte, S.A. de C.V. (Premezcla2) – Matamoros, Tamps., Mexico
Putzmeister equipment dealer: Construmac, S.A. – Naucalpan, Mexico