High Cement Content Problems Poughkeepsie 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

Metal Service Supply Corp
(845) 471-1655
Noxon Rd
Poughkeepsie, NY
ABC Supply Company Inc
(845) 483-7280
900 Dutchess Tpke
Poughkeepsie, NY
Moore's Lumber and Building Supplies
(315) 963-7418

Mexico, NY
Buffalo Sales Assoc
(716) 875-5030
3120 Elmwood Ave
Buffalo, NY
Byram Concrete & Supl Inc
(914) 682-4477
145 Virginia Rd
White Plains, NY
Home Depot Inc
(845) 485-0420
3470 North Rd
Poughkeepsie, NY
Lowes Home Improvement Warehouse of Poughkeepsie
(845) 298-4720
790 South Rd
Poughkeepsie, NY
A L Building Supply
(718) 871-4500
890 Coney Island Ave
Brooklyn, NY
George Lumber & Bldg Materials Inc
(315) 823-1709
525 E Mill St
Little Falls, NY
Chrystie Lumber
(212) 431-5558
123 Chrystie St
New York, 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 Poughkeepsie 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.
- Eliminating Swirls in Precast Panels Poughkeepsie NY
- Galvanized Wall Ties Poughkeepsie NY
- Handling Siding Materials Poughkeepsie NY
- Fibers for Permeability Poughkeepsie NY
- Home Siding Tips Poughkeepsie NY
- Flashing in Siding Installations Poughkeepsie NY
- Energy-Efficient Product Reviews Poughkeepsie NY
- Flue Liners for Masonry Chimneys Poughkeepsie NY
- Galvanized Wall Ties Poughkeepsie NY