High Cement Content Problems Staten Island NY

Portland cement gives a mortar added durability, high early strength, a consistent hardening rate, and high compressive and bond strengths. However, mortar with excessively high cement contents can affect water permeability and durability of the masonry.

Local Companies

Drew Masonry
(908) 289-4024
17 James Ave
Elizabeth, NJ
Rapid Masonry Restoration
(718) 424-8304
7906 37th Ave
Jackson Heights, NY
Albanese J Construction Co Inc
(201) 659-6165
123 Oakland Ave
Jersey City, NJ
Samson Stone Co Inc
(201) 656-2417
1000 Newark Ave
Jersey City, NJ
Franklin Stucco Of Jamaica Inc
(718) 523-0099
14815 Liberty Ave
Jamaica, NY
E C Hufnagel Landscaping Inc
(201) 869-5680
51 Broad Ave Apt 1
Fairview, NJ
Northeastern Stucco & Brickface Inc
(866) 553-6456
518-7 Old Post Road
Edison, NJ
Ugolini Elio Mason Contractor
(201) 433-4304
213 Harrison Ave
Jersey City, NJ
Jetco Unlimited Exterior Building Restoration & Maintenance
(201) 798-3178
268 New York Ave
Jersey City, NJ
Clean Flow
(732) 985-1934
53 Bartha Ave
Jersey City, NJ

Provided By:

Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: December 1, 1990


Portland cement gives a mortar added durability, high early strength, a consistent hardening rate, and high compressive and bond strengths. However, mortar with excessively high cement contents can affect water permeability and durability of the masonry. Water permeability is increased for three reasons. First, mortars with high cement content have greater shrinkage and more frequent shrinkage cracks. Shrinkage cracking often takes the form of evenly spaced vertical cracks in bed joints and evenly spaced horizontal cracks in head joints. The mortar may also separate or pull away from the body of the brick at the bond interface. Although high cement content mortar itself is less permeable, water can penetrate the shrinkage cracks. The second reason that high cement content mortars may increase water permeance is that these mortars are stiff and not easily workable. Because of this, good bond may not be achieved at the time of construction. Finally, the high strength (high cement content) mortars are hard (brittle) and don't easily accommodate movement of the masonry (due to environmental changes or foundation settlement) and therefore may result in cracking of the masonry wall. Cracks make the walls more susceptible to freeze-thaw deterioration even though hi...

Click here to read full article from Masonry Construction

Related Articles
- Flue Liners for Masonry Chimneys Staten Island NY
Building codes require that residential masonry chimneys with walls thinner than 8 inches (nominal) be lined with a fire clay flue lining, fire clay brick, or a material that resists corrosion, softening, and cracking from flue gases as hot as 1,800 degrees Fahrenheit.
- Incorrect Testing Practices Staten Island NY
- Fibers for Permeability Staten Island NY
- Home Siding Tips Staten Island NY
- Eliminating Swirls in Precast Panels Staten Island NY
- Flashing in Siding Installations Staten Island NY
- Energy-Efficient Product Reviews Staten Island NY
- Handling Siding Materials Staten Island NY
- Galvanized Wall Ties Staten Island NY
- Galvanized Wall Ties Staten Island NY