High Cement Content Problems New York 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
Willow Snow Removal
(201) 659-7266
67 Pollock Ave
Jersey City, NJ
Clean Flow
(732) 985-1934
53 Bartha Ave
Jersey City, NJ
Malatesta Paladino Inc
(718) 523-5656
13919 109th Ave
Jamaica, NY
Pezzino Nely
(718) 358-1481
2221 Parsons Blvd
Flushing, NY
E C Hufnagel Landscaping Inc
(201) 869-5680
51 Broad Ave Apt 1
Fairview, NJ
Jetco Unlimited Exterior Building Restoration & Maintenance
(201) 798-3178
268 New York Ave
Jersey City, NJ
Samson Stone Co Inc
(201) 656-2417
1000 Newark Ave
Jersey City, NJ
Jameson Mark
(201) 386-1500
Hoboken Area
Jersey City, NJ
Cotumaccio Luigi Masonry Contrctng Co
(718) 776-2661
9071 198th St
Jamaica, 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
- Flashing in Siding Installations New York NY
A constant problem that contractors see in siding installations is improper flashing or, even worse, no flashing at all. Relying on caulk alone to keep water from leaking into homes is not a good practice. Whether you're talking about wood, fiber-cement, or vinyl siding, three areas in particular can prove problematic.
- Galvanized Wall Ties New York NY
- Handling Siding Materials New York NY
- Home Siding Tips New York NY
- Galvanized Wall Ties New York NY
- Eliminating Swirls in Precast Panels New York NY
- Fibers for Permeability New York NY
- Incorrect Testing Practices New York NY
- Energy-Efficient Product Reviews New York NY
- Flue Liners for Masonry Chimneys New York NY