Cement, Mortar, & Conproco

Cement and mortar are common and crucial materials to most masonry projects, but they have key differences. Often confused with concrete, cement is a key mineral powder ingredient used to make concrete. When the need comes to making concrete or mortar at a jobsite, bags of material are needed for ease. Portland Stone Ware partners with Heidelberg Materials to distribute their portland cement and types of mortar in bags. In addition, Portland Stone Ware also offers a few Conproco products.

While the practice of making concrete dates to the Romans, cement manufactures have made significant improvements to manufacturing and decreasing carbon dioxide (CO2) emissions. Recently in the summer of 2025 Portland Stone Ware will follow Heidelberg’s plan for a healthier environment footprint by switching from Type I/II to distributing EcoCem® PLC Type 1L (MS).

Resources To Guide You

EcoCem® PLC Brochure download icon EcoCem® PLC Questions download icon EcoCem® PLC Questions Sp. download icon Portland Cement Safety Data Sheet download icon Masonry Cement PDF download icon Masonry Cement Safety Data Sheet download icon

Cement

Bagged cement is needed for versatility on a job site, but the process of manufacturing cement no longer needs to be harmful to the planet. Heidelberg’s EcoCem® PLC Type 1L (MS) will provide the same levels of durability and strength as Portland cement Type I/II but with a smaller carbon footprint for a healthier environment.

PLC (Portland Limestone Cement) is an ASTM C595 product, a Type I-II Portland alternative, that allows 5% to 15% limestone to be added to the manufacturing process. Switching to PLC offers the benefits of an environmentally sustainable product with equivalent performance to
ordinary portland cement. Each bag of cement is 94 lbs per bag.

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. Adding the aggregates (ex. sand, gravel, and crushed stone) to cement will make cement stronger for structural projects.

For further information on EcoCem® PLC , please see the following documents or click here

Product
PSW Item #
Bags per pallet

ECOCEM® PLC Type 1L (MS)

C0104
40

Portland Type III

C0103
40

White Type I

C0105
40

Mortar

Mortar acts in a similar way to cement without gravel and crushed stone, but instead, bag contents are added to a mixture of sand and water. A binder can be added for extra strength. Mixed properly, mortar will be thicker, making it a better bonding element. Masonry cement Types N and S are covered by ASTM C91 which defines masonry cement by physical requirements and performance properties rather than ingredients.

Type N is used for interior walls and exterior walls above grade, while Type S is recommended for higher strength in load bearing or below grade walls. Type N bags are 70 lbs bags, and Type S bags are 75 lbs bags.

For further information on Masonry Cement, please see the PDF, the Safety Data Sheet, or Click Here

Product
PSW Item #
Bags per pallet

Light Masonry Type N

C0201
40

Masonry Type S

C0204
40

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