50 McGrath Road P.O. Box 670 Dracut, MA 01826Toll Free 1 (800) 343-0001Fax 1 (978) 452-9988

Distributor of Building Materials since 1847

Cement, Mortar, & Conproco

In masonry projects, cement and mortar are common yet sometimes crucial materials. Portland Stone Ware distributes Lehigh’s Iron Clad products, Dragon’s products, and Conproco ProMasonry’s products. While they all bind stone, brick, and other building materials together, cement and mortar have a key difference. Cement is often confused with concrete. Cement is a finely ground, usually grey colored mineral powder. When bag contents are mixed with water, cement acts as a glue to bind together the sand, gravel and crushed stone to form concrete, one of the most durable and widely used construction materials in the world. Mortar acts in similar ways as cement without gravel and crushed stone. Adding the aggregates (ex. sand, gravel, and crushed stone) to cement will make cement stronger for structural projects while mortar mixed properly will be thicker making it a better bonding element. In creating a batch of mortar, usually contents of a bag is added to a mixture of sand and water, and a binder can be added for extra strength.

Additional Information on Cement & Mortar Products

Cement

Type I Portland Cement (light gray) is suitable for general concrete construction, cool weather construction, applications requiring increased early strength, masonry units, masonry mortars and where the special properties of other types are not required. Type II Portland Cement (dark gray) is suitable for general concrete construction, masonry mortars, warm weather construction and special applications where lower heat of hydration or increase sulfate resistance are required.

Link to Portland Cement Safety Data Sheet

Product
PSW Item #
Bags per pallet

Portland Type I

C0101
40

Portland Type I/II

C0103
40

Portland Type III

C0103
40

White Type I

C0105
40

Mortar

Type N is used for interior walls and exterior walls above grade and Type S is recommended for exterior walls at, or below, grade. Dragon Dark is a Type N mortar and is used where a charcoal gray color is preferred.

Link to Masonry Cement Safety Data Sheet

Product
PSW Item #
Bags per pallet

Light Masonry Type N

C0201
45

Masonry Type S

C0204
45

Dragon Dark

C0203
45

Conproco

Due to popularity in the masonry industry, we offer a second line of cement and mortar known as Conproco’s ProMasonry products.

For further information on these products, please click here.

Product
PSW Item #
Bags per pallet

Concrete Mix 80 Lbs

C0107
49

Mortar Mix Type S

C0206
49

Mortar Mix Type N

C0207
49

Sand Mix

C0210
49

K-88 Admix 1 Qt

C0301
12 PER CASE

K-88 Admix 1 Gal

C0305
6 PER CASE

Water Shield 1 Gal

C0302
N/A

Water Shield 5 Gal

C0303
N/A