As new concrete hydrates, it creates calcium hydroxide. When the calcium hydroxide comes in contact with carbon dioxide in the air, it creates calcium carbonate (free salts).
Latest
Plate Compactors and Rammers: Making a Choice Before the Concrete Pour
When raw soil or aggregate needs to be compacted before a pour, what do decorative concrete contractors use to pound the ground? Rollers are too much machine for smaller jobs. So generally, the choice is between rammers and vibratory plate compactors.
New product spotlight: SS ColorSystem
For many years, customers have been asking SealSource LLC for a densifier with color. As company CEO Kym Nelson reports, they may be the first company to offer a densifier that includes coloring pigments: SS ColorSystem, a penetrating, chemical densifier available in a wide range of colors.
Vertical Concrete Overlays: Decorative and Durable
Owners of commercial and retail establishments are discovering the benefits of beautiful, easy-to-clean concrete walls.
Exposed Aggregate Meets Imprinted Colored Concrete in a Waterfront Walkway
The decorative surface was going to be troweled and stained. But after Brock was hired, he made another suggestion: a stamping job instead, using the Coquina Stone With Sea Shells feathered texture mat from Proline Stamps. Impressions of shells, sea horses and assorted sea life would improve traction and complement the seaside setting.
Making Molds for Precast Concrete Countertops
Wood? Melamine? Formica? Steel? Experienced artisans share their preferences for form materials.
The Concrete Colorist Offers Boundless Opportunities for Color and Design
For artisan Brian Vicari, concrete offers boundless opportunities for color and design.
Stamps mimic Keystone slate
A new stamp pattern from L.M. Scofield Co. offers serious stampers a taste of old America. The Pennsylvania Slate series is modeled after a natural slate found in the Keystone State. The rock is popular there as an accent for traditional architectural styles. Pennsylvania Slate imprinting tools can be laid […]
Compressor saves energy
Mi-T-M Corp. has introduced a threephase, two-stage electric air compressor. When threephase power is available, operating threephase motors incurs less energy costs than onephase motors. Features of this portable 30- gallon compressor include: three-phase 5.0 HP motor; two-stage compressor with aluminum head and splashlubricated cast-iron crankcase and castiron cylinder; 16.5-inch […]
Inspired new drills
Hitachi Power Tools today announced two new cordless hammer drills. The Hitachi DV18DMR and Hitachi DV14DMR incorporate advanced features to help users power through wood, plastic, metal, concrete and stone materials with ease. The DV18DMR, an 18-volt cordless hammer drill, delivers 550 in/lbs of torque (class-leading), while the DV14DMR, a […]
