High Cement Content Problems Binghamton 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

Lowe's Home Improvement Warehouse of Binghamton
(607) 762-1000
1314 Upper
Binghamton, NY
84 Lumber Co
(607) 775-9518
64 Spud Ln
Binghamton, NY
Erie Materials-Binghamton Inc
(607) 773-8006
33 Phelps St
Binghamton, NY
Sixth John & Son Inc
(716) 938-6521
Rock City
Little Valley, NY
Spinelli Bldg Supl Co
(718) 373-2585
2002 Neptune Ave
Brooklyn, NY
Tri-City Highway Products
(607) 722-2967
111 Bevier St
Binghamton, NY
84 Lumber Co
(607) 775-5349

Binghamton, NY
Belknap Lumber Inc
(607) 729-1583
7 Belknap Ave
Binghamton, NY
Foland's Lumber & Bldg Supls
(607) 722-8738
550 Front St
Binghamton, NY
Building Specialists Inc
(845) 279-3111
50 Prospect Hill Rd
Brewster, 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...

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