Self-Healing Concrete Uses Natural Stone Formation Processes

Army Corps Successfully Prints Full-Size Concrete Building
The U.S. Army Corps of Engineers has successfully printed a 512 sq ft concrete building using a custom 3-D printer developed for use in remote locations....

Musical Masterpiece
La Seine Musicale, a world-class concert hall on a redeveloping island west of Paris, is a masterpiece of structural, acoustic, and mechanical engineering. Resembling a ship at sea, the concrete structure...

Concrete Additive Proved to Melt Snow without Deicing Salts

Geotechnical Aspects of Pavements: There's More to Roads than Asphalt and Concrete!
When you jump on the highway to make that commute to work, do you think much about what's under the surface you ride on? Pavements are layered systems designed to provide a strong structure to support...

Spread Footings Revisited: Geotechnical Advances Lead to Expanded Use for Bridge Abutments
The Minnesota Department of Transportation (MnDOT) has historically used steel shell piles to support highway bridge structures, probably due to a blend of familiarity and efficiency among...

Porous Asphalt and Permeable Friction Course Overlays
Porous asphalt typically consists of conventional warm mix asphalt (WMA) or hot mix asphalt (HMA) with significantly reduced fines resulting in an open-graded mixture that allows water...

Pervious Concrete
Pervious concrete consists of a hydraulic cementitious binding system combined with an open-graded aggregate to produce a rigid pavement with typically 15% to 25% interconnected void space....

Permeable Interlocking Concrete Pavement (PICP)
Permeable interlocking concrete pavement (PICP) consists of (impervious) manufactured concrete units that form permeable voids and joints, when assembled into a laying pattern. The openings...

Grid Pavement
Open grid pavements consist of concrete or plastic units with large surface openings filled with a permeable joint material, typically small aggregate (ASTM No. 8 or No. 89), sand, or...

Structural Members and Connections Used in Foundations
This chapter specifies design procedures for steel members and connections embedded in concrete foundations or the earth. Additional design requirements for structural members and connections...

The Leaning Towers of Wilmington, Delaware: Emergency Response and Retrofit of the I-495 Viaduct to Address Lateral Squeeze
On a sunny, summer afternoon last June, the project manager for AECOM's open-end bridge design contract with the Delaware Department of Transportation (DelDOT) received an...

Resistance of Hardened Box-Type Structures

Evaluation of the Vistawall MSE Wall System by T&B Structural Systems
Final Report
The Highway Innovative Technology Evaluation Center (HITEC), serves as a clearinghouse for implementing highway innovation by conducting nationally focused, collaborative evaluations of...

Building Code Requirements and Specification for Masonry Structures
Containing Building Code Requirements for Masonry Structures (TMS 402-11/ACI 530-11/ASCE 5-11), and Specification for Masonry Structures TMS 402-11/ACI 530-11/ASCE 6-11), and Companion Commentaries
Building Code Requirements and Specification for Masonry Structures contains two standards and their commentaries: Building Code Requirements for Masonry Structures (TMS 402-11/ACI 530-11/ASCE...

Evaluation of the Stone Strong Gravity Wall System by Stone Strong Systems: Final Report
This report was prepared as part of the HITEC evaluation for earth retaining systems. This evaluation was performed on STONE STRONG gravity walls, a precast modular wall developed, designed,...

Estimation of Curve Numbers for Concrete and Asphalt
All impervious surfaces are assigned a Curve Number (CN) of 98. However, no field or experimental evidence exists (to our knowledge) that shows why the impervious CN was assigned a value...

Hydrologic Comparison of Four Types of Permeable Pavement and Standard Asphalt in Eastern North Carolina
A permeable pavement parking lot in eastern North Carolina consisting of four types of permeable pavement and standard asphalt was monitored from June 2006 to July 2007 for hydrologic...

Size and Scale Effects on the Shear Strength of Concrete Beams
This paper identifies and discusses the role of proper geometric scale of relevant parameters in the size effect in shear, particularly in terms of practical beam design. In the overall...

Innovative Methods Used in the Design and Construction of the New Tacoma Narrows Bridge
On September 25, 2002, Notice-to-Proceed for a Design/Build Agreement was issued by the Washington State Department of Transportation (WSDOT), directing Tacoma Narrows Constructors (TNC)...

 

 

 

 

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