construction defects in concrete

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Poor vibration

Courtesy from Paulo Barbosa

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and MaterialsCarlos Videla C.

Plastic Shrinkage

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Plastic Shrinkage

Courtesy from Rubens Bittencourt

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Plastic Settlement

Courtesy from Rubens Bittencourt

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Plastic Settlement

Carlos Videla C.

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Movement of the Formwork

Courtesy from Rubens Bittencourt

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and MaterialsCarlos Videla C.

1.5 Patologías Constr. Hormigón Causas de PatologíasSegregation

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Crazing

Carlos Videla C.

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Poor construction joint

Carlos Videla C.

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Inadequate construction joint

Carlos Videla C.

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Good construction joint

Carlos Videla C.

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Insuficient cover

Carlos Videla C.

1.5 Patologías Constr. Hormigón Causas de Patologías

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and MaterialsCarlos Videla C.

1.5 Patologías Constr. Hormigón Causas de Patologías

Desplazamiento

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Shrinkage

Carlos Videla C.

1.5 Patologías Constr. Hormigón Causas de Patologías

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Corrosion

Carlos Videla C.Courtesy from Paulo Barbosa

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Corrosion

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Freezing of concrete

Carlos Videla C.

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Efflorescence

Courtesy from Paulo Barbosa

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Poor joints

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Fire Damage

Carlos Videla C.

Courtesy from Carlos Videla

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Fire in tunnels

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Fire damage

Fire in theChunnel

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

ASR damage

Furnas Dam

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

ASR damage

Built in 1965, this deteriorated bridge is located 9.7 miles west of Lee Vining at 9400 feet elevation on the eastern slope of the

Sierra Nevada.

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

ASR damage

Airfield parking apron at Naval Air Station Point Mugu, California .courtesy of U.S. Navy, NFESC

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Problems in Waterfront Facilities

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

General Cracks

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

General Cracks

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

General Cracks

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Courtesy from Douglas Burke

General Cracks

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Poor Drainage

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Top Deck Delamination SurveyTop Deck Delamination Survey

Chain Drag

Sounding with a Hammer

“Delam 2000”Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Closed Corrosion Closed Corrosion SpallsSpalls

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Top Deck: Open Corrosion Top Deck: Open Corrosion SpallsSpalls

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Mechanical Damage

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Under Deck Inspections

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Open Corrosion Spalls

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Closed Corrosion Spalls

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Corrosion Cracks

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

A “swim by” inspection of 100% of the concrete

piles, from the splash zone to the mud line.

Visual Inspection of Piles: Level I

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

A 12” wide band is cleaned to expose the pile surface for inspection at three elevations: Mud line; Mean Low Water; Mid-depth

Visual Inspection of Piles: Level II(10% of piles)

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Visual Inspection of PilesLevel II

(10% of piles)

• Visual inspection

• 5 strikes: geology pick

• Photograph

• Measure defects

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

VISUAL DETERIORATION CLASSIFICATIONS

I - SOFTNESS, EROSION AND SLIGHT CRACKING

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

VISUAL DETERIORATION CLASSIFICATIONS

II - CRACKING, SOFTNESS, EROSION AND SOME DELAMINATION

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

VISUAL DETERIORATION CLASSIFICATIONS

III - DELAMINATION TO EXPOSE REINFORCING

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

VISUAL DETERIORATION CLASSIFICATIONS

IV - COMPLETE LOSS OF CONCRETE

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

ASTM C 42-99 “Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete”

ASTM C 823-00 “Standard Practice for Examination and Sampling of Hardened Concrete in Constructions”

Concrete Sampling

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Above water Concrete Core Sampling

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Core

Drilling

Grab Samples

Intertidal Zone Concrete Core Sampling

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and Materials

Underwater Concrete Core Sampling

Courtesy from Douglas Burke

Construction Defects and Inspection

P.K. Mehta and P.J.M. Monteiro, Concrete: Microstructure, Properties, and MaterialsCourtesy from Douglas Burke