A proven technique for subgrade stabilization is full-depth reclamation (FDR) with cement.
Ideal for subgrading and blacktop prep, the EDGE Grader Blade and Laser System for skid-steer loaders has a reversible, replaceable cutting edge with an optional end plate kit. An in-cab control box with proportional current valve allows control of oil movement to the cylinder for smooth...
The BS-2i series two-cycle rammers are compliant with EPA and European Community emission regulations through 2015. Powered by the company’s WM 80 engine, the rammers’ auto-release choke—in which the choke and throttle positions are linked—eliminates “rammer hop” at startup; the operator no longer...
Recently constructed buildings are more energy efficient than their predecessors because of better insulation and tighter building envelopes that don't leak much air, in or out.
Because my degree is in naval architecture and marine engineering, things that float interest me.
-
We've been asked to place a concrete pad as the floor for a newhome, on a base of crushed limestone. There will be copper water pipescoming up through the floor. Are there any reasons for concern about a chemical reaction between the limestone and the copper pipe?
Sustainable concrete is becoming more popular than green concrete because it includes useful service over a long time. In the case of floors and pavement, the concrete must stand up to the service needs of an application for a long period of time, with minimal repair expenses.
When it comes to choosing the “right tools for the job,” the prudent contractor does his homework before getting in over his head. Today, choosing tools incorrectly, or not including the needed tools in the bid for a project, can financially sink a contractor when repairs are needed because of poor...
Methods used for preparing the ground for concrete placement depend on the job.
There are several options available to owners, developers, and design and construction teams to maintain, or improve, the exposed sub-grade and subbase and keep your project on track.
When it comes to compacting a subgrade for a residential application, consistency, quality, and good practice by the contractor are critical to prevent concrete cracking and sinking concerns for the homeowner.
-
Slab thickness tolerances has long been a point of contention between contractors and specifiers.
The primary reason for the move to vapor barriers for residential construction is to improve the thermal efficiency of residential buildings. Mold and fungus litigation has also promoted increased use of vapor barriers because the movement of moisture from the ground through floor slabs is a...
Although generally these may be considered decisions made by the designer, contractors should understand the basics of slab design in order to be an involved partner in a project.
Building a reputation for installing long-lasting, hard-wearing, maintenance-free floors means going the extra mile. The Fricks Company, Fort Worth, is known across North America for just that kind of work: dense, durable concrete floors built using aggregate surface hardeners...
2005 ACPA Excellence in Concrete Pavement Awards Winner: Divided Highways—Urban
Today's concrete pavements are being built smoother than ever before, providing an excellent riding surface while retaining good surface texture and skid resistance. And the advent of stringless paving and stringless trimming are making construction easier, thanks to laser or optical guidance...
-
I have two projects that have developed darkened and slippery sections on the floor slab surface. One project is 12 months old and the second is 2 years. When certain environmental conditions appear, moisture condenses on the surface and tends to turn into a slippery material (more than just...
-
Our home is 2.5 years old, and the basement slab is constantly wet. Water is moving from the subgrade through the concrete. We did a pH test on the moisture, and it has a considerable acid content. The carpet, which was glued to the concrete, has come loose. What can we do about this problem?
-
The skid-steer loader is one the workhorses of the concrete construction industry--especially on small jobs. It can maneuver in tight spaces, excavate for slabs on grade, place and fine grade stone subgrade, and haul loads over rough terrain. More recently, it has become a tool carrier for various...