Foundation Crack Repair, Basement Waterproofing Blog

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What is that Rusty Thing Sticking out of my Foundation Wall?

Joseph Coupal - Tuesday, November 14, 2017

Homeowners are complaining about the rusty things sticking out of their foundation walls. People can get hurt by them and they can let water in.

A1 Foundation Crack Repair - Tie Rods These "rusty things" are called tie rods or snap-ties. They are used during the construction phase. Builders take two pieces of wood and use the rods to separate them, they then pour the concrete between the wood. Once the concrete is dried, they remove the wood and are also supposed to snap the ties off on the outside and on the inside of the foundation. They should be removed from the outside because they are a good source for letting water into the basement. Some contractors don't. We are getting calls because these tie rods have not been snapped off. We go in and cut them off, but they often leak. Often they are leaking before we snap them off. They leak because they are made of metal, metal rusts, and when they rust they get smaller, when they get smaller water can come in.

We work from the inside. We drill next to the tie-rod, put our ports in, and then inject the ports with closed polymer resin which stops the water and cold air from coming in. For those that are not leaking, we snap them off and put in a certain caulking as preventative maintenance. This stops the potential for both water and cold air from coming in.

For more information on basement waterproofing, contact A1 Foundation Crack Repair.

How Much Water is in Concrete?

Joseph Coupal - Thursday, November 02, 2017

It's common knowledge that concrete begins with water and a dry cement substance that are mixed together, poured into a mold that then becomes very hard. But that is probably the end of most people's knowledge on the subject.

But there is also aggregate and other chemicals that are put into it. Cement has a lot of weight. Think of a square yard. That square yard of concrete weighs 3,700 pounds coming down the chute of the cement truck. If that yard is poured and then dried, it then weighs 3,500 pounds. And that's just for a yard. Think of how many yards a basement floor and walls has. Now the difference in one yard of wet and then dried concrete is 200lbs. The concrete is missing 200lbs which equals about 38 gallons of water. They are supposed to vibrate the concrete in most cases to get the air pockets out, but you are always going to have some minor air pockets. When the water evaporates, you'll have air pockets.

You need to know what you are doing with the concrete or you will get yourself in trouble. You need to choose a contractor that is aware of the nuances of concrete if it dries too quickly or in the cold you'll have foundation problems.

For more information, contact A1 Foundation Crack Repair.

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A-1 Foundation Crack Repair, Inc. is a fully registered home improvement contractor. Contact us today to talk to a knowledgeable, master waterproofing professional.