High Cement Content Problems Astoria 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

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
Sanyo Enterprises Usa Inc
(718) 846-8100
11617 Sutphin Blvd
Jamaica, NY
Kabinet King
(718) 291-5023
17605 Linden Blvd
Jamaica, NY
Academic Stone Setters Inc
(718) 463-7395
2907 119th St
Flushing, NY
E C Hufnagel Landscaping Inc
(201) 869-5680
51 Broad Ave Apt 1
Fairview, NJ
Ugolini Elio Mason Contractor
(201) 433-4304
213 Harrison Ave
Jersey City, NJ
A La Marca Construction
(718) 526-7795
14402 91st Ave
Jamaica, NY
Franklin Stucco Of Jamaica Inc
(718) 523-0099
14815 Liberty Ave
Jamaica, NY
Pezzino Nely
(718) 358-1481
2221 Parsons Blvd
Flushing, NY

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
- Incorrect Testing Practices Astoria NY
Conducting other tests improperly can also cause rejection of in-spec concrete at the jobsite. Have your drivers learn the correct methods for sampling concrete, measuring slump and air content, and making and curing strength-test specimens in the field. They're your first line of defense against needlessly rejected loads of concrete.
- Handling Siding Materials Astoria NY
- Fibers for Permeability Astoria NY
- Home Siding Tips Astoria NY
- Eliminating Swirls in Precast Panels Astoria NY
- Flue Liners for Masonry Chimneys Astoria NY
- Galvanized Wall Ties Astoria NY
- Energy-Efficient Product Reviews Astoria NY
- Galvanized Wall Ties Astoria NY
- Flashing in Siding Installations Astoria NY