Concrete and masonry constructions have been the basis of our built environments for centuries. These materials have proven themselves time and again. However, like all things, they do need some TLC from time to time. Here’s where advanced shoring and underpinning come into play.
Underpinning consists of strengthening the foundations for an existing building. It’s like buying a house a new pair shoes that can handle all the weight. In the past years, this field has seen some very cool developments.
Let’s start by discussing concrete. Since the days of mixing sand with gravel, cement and water, concrete has advanced a great deal. Concrete is now stronger, more durable, and smarter than ever. A good example of this is the high-performance (HPC). It is more durable and stronger thanks to advanced mixing designs and additives, such as fly ash and silica.
There’s also self-healing concret – you heard right! This futuristic product can self-heal cracks by using bacteria embedded in it. This bacteria is activated by water that seeps in a hole and creates limestone to fill in the crack. Imagine having a small mason working 24 hours a day inside your walls.
Now, let’s switch gears and talk about masonry. The traditional brick and mortar construction has both its charm and its limitations. Engineered masonry Units (EMUs) have been developed. These are specially-designed blocks that provide superior performance to bricks or stones. Their optimized shape makes them stronger and lighter.
But what are the benefits of using fancy materials when you do not have the correct techniques? It’s also important to note that the techniques have evolved as well.
Underpinning with mass concrete is one popular method. Think about pouring the new foundation on top of your existing foundation, layer by layered, until stability can be achieved.
One technique that is becoming more popular involves the use of small piles driven deep underground into the stable strata. This provides additional support without affecting surrounding areas too much. It’s ideal for urban settings, where space limitations can make it difficult to do traditional excavation work.
Jet grouting goes a step further by using high-pressure jets that inject cementitious material directly into weak areas, creating columns below foundations. This transforms unstable soils into firm bases capable of supporting loads above almost miraculously!
Micropiles can be adapted to a wide range of situations, from residential homes and commercial complexes to infrastructure projects. The compact size allows for easy installation with minimal disruption.
Conclusion: Whether dealing with older heritage properties or more recent constructions in need of extra reinforcement, underpinning has always been a vital aspect to maintain structural integrity safety and longevity as technology continues to advance rapidly. Demands are also increasing every day. When someone says “underpin”, keep in mind that there are numerous ways to deal with the issue. Leveraging latest innovations, you can ensure tomorrow’s monuments stand strong against odds.