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The preferred supplier of quality concrete, aggregate and
related building materials for Skagit and Snohomish Counties.

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Readymix Concrete

SPC / SRM delivers concrete with quality and a smile. SPC / SRM can specially design a mix for your needs. SPC / SRM has developed over 400 mixes, has a number of concrete tools and supplies, and are excited to help you finish your job and create the look you want. Please ask dispatch for more details.

We offer mixes to suit any need or desire, from 2500 psi mixes for garages and footings to 7,000 psi paving mixes and beyond.

Frequently Asked Questions

What is the difference between cement and concrete?

Cement is an ingredient in concrete. Cement is manufactured through a process where numerous products are ground, mixed and then heated to very high temperatures to create the finished product. Concrete utilizes cement as a glue to hold together a mixture of stone, sand, water and cement.

Can Concrete be installed over an old asphalt driveway?

Yes. Concrete is an excellent material for overlaying old or worn asphalt drives. This process is often called "white topping."

Is it a good idea to put a sealer on new concrete surfaces?

Yes. Sealers, applied correctly, help concrete reach its maximum strength and become more durable. Sealers also keep the concrete looking new and makes cleanup and maintenance a breeze. Sealers are recommended for all exterior concrete, especially exposed or color treated concrete.

Why does concrete crack?

Concrete has the same characteristics of a sponge. Concrete is just like the sponge that you leave on the edge of the sink after you cleaned your dishes. When the water leaves the sponge, the corners curl towards each other. Concrete goes through the same process as the sponge, but the sponge does not have the weight the concrete does. The concrete dries and gravity takes over. The concrete cracks where it needs relief from the stresses of the drying. To help alleviate this problem, use Confilm during finishing and have your cut joints at the proper depth and widths to try to control cracking. Ask dispatch or sales about Confilm and proper curing and sealing products after placement.

Why is most cement manufactured today called Portland cement?

In 1794, Englishman Joseph Aspdin made the first modern-day cement by heating a mixture of limestone, clay, iron ore and sand. When combined with water, rock and sand, his invention made concrete that reminded him of the valued stone that was mined on the Isle of Portland, in England.

Does concrete dry out?

Never completely. There is always moisture in concrete, even interior concrete.

Are concrete roads more expensive to build than asphalt roads?

The initial cost to pave with concrete is slightly higher than asphalt, however, concrete has dramatically lower life cycle maintenance and repair costs. Properly constructed roads and streets can last 50 years or more with very little maintenance.

Are ICF concrete homes more energy efficient than wood frame homes?

Yes. Concrete's mass increases energy efficiency because concrete walls respond to changes in temperature very slowly. Add polystyrene foam on both sides, and the efficiency climbs to the equivalent of an R-40 to R-50 stud wall. For example, it may take 4 to 8 hours for a temperature change to migrate through a concrete wall (minus the foam), yet only 1 hour through a fully insulated wood frame wall. Air leaks are responsible for one-third of the energy loss in homes. Due to its solid wall system, there are far fewer air leaks in a ICF concrete home.

Is concrete environmentally friendly?

Yes. Concrete is chemically inert and has no components made from petroleum products or other chemicals that might have an effect on our water supply due to rainwater run-off. Pervious concrete is a porous mix that allows water to drain through it. This allows the water to filter back into the ground in a natural fashion, acting as a bio-swale.

How many trees are typically needed to build a wood-frame home?

The typical wood-frame home requires 41 trees to provide all the materials needed. Concrete products can replace many, if not all, of the wood products. These replacements can include the walls, floors, counter-tops, and roof.

Can using concrete as a construction material reduce air temperature?

A. Yes. Today's cities are "heat islands" that are several degrees hotter than the surrounding countryside. By planting trees and building homes and pavements with light colored surfaces, air temperatures can be lowered by up to 10 degrees.

Is all concrete the same?

No. Concrete is similar to cookies or cakes. Many look the same, but because of different ingredients, all taste a little different. In other words, concrete can be different from mix to mix depending upon the specifications of the job or what the owner desires. Your dispatcher or sales representative at SPC or SRM can help provide you with the best mix to suit your needs.

How much notice should I give for delivery of concrete?

Availability changes daily from plant to plant. Some days no notice is necessary, but most days you could need several in advance. For more information, please call your dispatcher to determine a delivery schedule.

What causes concrete to blister and eventually flake off?

Concrete has tiny air bubbles like a soda pop. They must be allowed to escape. If not, the air will become trapped and push the surface layer loose. Improper finishing or curing can also contribute to a less durable surface, leading to eventual failure.

Why does my exposed aggregate driveway look dirty?

Just like your teeth, concrete needs to be cleaned regularly too. Every 2-3 years pressure wash your concrete and seal the surface with a non-yellowing, high solid sealer and your driveway will give you a lifetime of service. SPC/SRM carries the best sealers for your driveway and will help you decide which the best choice is for you.

Can I color my concrete?

Yes! Concrete can be colored in a variety of ways to give a beautiful and unique look to your home or project. At SPC/SRM, we are the suppliers of the INCRETE Systems full line of decorative products to beautify and enhance any project, both residential and commercial. Please call one of our helpful representatives to find out how you can add color to your world!