Signs of Poorly Vented Plumbing Drain Lines

Poorly vented plumbing drain lines are often problem to many homes (Signs of Poorly Vented Plumbing Drain Lines). People notice some changes when the water flows but they often do not take it seriously and the problem becomes even bigger. The bubbles in the toilet or sudden water level changes in the toilet bowl are […]

Bridge Expansion Joints

  Large movement expansion joints are best defined as those that provide support across the expansion void, without exceeding the code requirement of the 85 mm ULS unsupported gap. Large movement expansion joints, particularly of the Modular type having movement capacities up to 2,000mm, require careful consideration as to the structural integrity of the bridge […]

THREE TYPES OF CONCRETE FOUNDATIONS

T-Shaped   Slab-on-grade foundation   Frost Protected   There are many variations of concrete slabs depending on the purpose of the slab. Below are some useful links for understanding concrete foundations, along with the three types of concrete foundations. T-Shaped A traditional foundation method to support a structure in an area where the ground freezes. […]

ROOF PITCH ANGLE.

A roof pitch angle is the slope and inclination angle of a roof in large buildings or smaller residential homes. Roof pitch is calculated in degrees via a simple conversion method and this article explains how. If you are planning to renovate your house by installing skylights or cutting new rake boards, it’s essential to […]

AUTOCAD SHORTCUTS FOR COMMON COMMANDS A-Z

Below, you’ll find the AutoCAD one-key shortcuts.  SHORTCUT COMMAND COMMENT A ARC Draw an arc AL ALIGN Align an object with another AP APPLOAD Opens application load dialogue box AR ARRAY Opens array dialogue box AUDIT AUDIT Audit drawing for errors AV DSVIEWER Opens ariel view of drawing B BLOCK Opens block dialogue box C […]

Reinforcement of cantilever retaining wall.

Retaining wall design is crucial for giving support to slopes of soil, that would otherwise be unstable and run-off.   The different types of wall designs include Gravity, Semigravity, Cantilever and Counterfort. The precision in the design of such walls is important since they can be toppled by natural forces (hurricane & earthquakes) if ill-constructed. […]

EPOXY INJECTION FOR CONCRETE CRACK REPAIR

Introduction Certain things in life are inevitable. Some are said to in-clude death, taxes, and concrete cracks! The latter is subject to volumes of literature on causes and cures. Some of the more typical causes for concrete cracking include: •         Drying shrinkage; ,•         Thermal contraction or expansion; •         Settlement; •         Lack of appropriate control joints; •         Overload conditions that produce […]

HOW TO CALCULATE NUMBER OF BRICKS

When you are planning your project it will become very important for you to be able to learn how to calculate the number of bricks in your wall. It is quite simple how to work out the number of bricks you will require, but there are a few considerations you must consider: • Thickness of […]