article thumbnail

SURVEYING: ERROR SOURCES IN TOTAL STATION

The Constructor

In the past very specific measuring techniques were taught and employed by surveyors to compensate for minor mechanical imperfections in theodolites. One must now do more than memorize techniques that compensate for errors. Vertical circle eccentricity cannot be compensated for in this manner since the circle moves with the telescope.

Concrete 240
article thumbnail

REDUCING DRYING SHRINKAGE IN CONCRETE

The Constructor

It may also be controlled by using shrinkage compensating cement. To be successful, this procedure needs careful control and proper consolidation. Cracking due to shrinkage can be controlled by using properly spaced contraction joints and proper steel detailing. Tweet Loading GET LATEST TOPICS IN YOUR EMAIL- SUBSCRIBE NOW.

Concrete 229
professionals

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

PRESTRESSED CONCRETE OVER REINFORCED CONCRETE.

The Constructor

Reinforced concrete: In reinforced concrete, steel reinforcement bars are provided to carry tension in those regions of the member where tension may occur, compensating for the low tensile strength of the concrete. In practice, reinforced concrete beams are designed on the assumption that cracks will occur under their service loads.

Concrete 133
article thumbnail

Innovation Is Thriving In Arizona

Business Facilities

AZLabs is located adjacent to the Phoenix-Mesa Gateway Airport making it a strategic location for unmanned and autonomous vehicle research and operations. When you are ready to invest, Peoria will provide a dedicated, in-house team for quick and consistent plan review, permitting and inspection. In 2016, U.S.

Arizona 76
article thumbnail

State by State Incentives Guide

Buisness Facilities Contributed Content

In 2001 the MRZ designation was renewed for the former Williams Air Force Base, now known as Williams Gateway Airport. Naval Air Facility in Goodyear, now known as Phoenix/Goodyear Airport, was designated as an MRZ. Currently there are two MRZs in Arizona. In December 2002, the former U.S. WORKFORCE DEVELOPMENT.

Income 108
article thumbnail

STATE INCENTIVES GUIDE

Buisness Facilities Contributed Content

An ‘aviation development zone’ is any airport in Colorado that is a public-use facility designated by the FAA in its latest National Plan of Integrated Airport Systems, which has registered with the Colorado Office of Economic Development and International Trade (OEDIT). See www.doleta.gov/business/incentives/opptax/.

Income 75
article thumbnail

A Primer on MasterFormat & Improving Construction Project Collaboration

Building Information Management

00 45 26 Workers Compensation Certificate Schedule. 01 21 19 Testing and Inspecting Allowances. Special Project Procedures for Airport Facilities. 01 43 26 Testing and Inspecting Agency Qualifications. 01 45 23 Testing and Inspecting Services. 01 45 26 Plant Inspection Procedures. Requirements. 01 33 29.05