It’s hard to imagine a construction project that does not involve the use of concrete. For millennia, builders have used all sorts of composite material they produce by combining fine and coarse aggregates. The most trusted option, which is still extensively used today even with the growing popularity of “sustainable” materials, is concrete, and for good reasons. The following information may enlighten you on the real reason why concrete is still the best construction material available.
Fire and Water Resistance
Although the formula for making concrete includes water as the binder, the final output is actually impervious. Meaning, water or any other fluid cannot seep through it, except if the concrete was poorly done and has tiny voids within it. The final output is also essentially a rock, and so it doesn’t burn like wood or plastic. It has a higher thermal resistance than metal as well, which makes it a perfect material for constructing structures that are intended for applications involving high heat.
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Thirteen construction workers were severely injured while working at a mixed-use development in Oakland, California on May 2017. The cause of the accident was the collapse of a shoring system while concrete was being poured into the formwork it was supporting. Investigators later found evidence that point to safety violations committed by the three main contractors of the project, who were later fined $147,315 for damages.
This incident is a perfect example of the disaster that can happen if the concrete forming systems used during construction fall short of building standards, which begs the question, “what type of formwork is safe to use?” or “how do you know which type of material makes a good formwork?”
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Construction job sites ideally run on a very tight schedule. The progress of the work rests not just on the efficiency of the workers but also on the reliability and durability of the materials used. The manner by which these materials are prepared and utilized also have a direct impact on the workflow process. In pouring cement, for example, both form and timing will determine how well the final product comes out. One way to ensure that resources are not wasted is to use quality concrete forming systems.
What are Concrete Forming Systems
Concrete forming systems
, as its name suggests, are cement molds that keep the liquid cement holding a particular form or shape until it dries up completely. Their functionality is crucial to the efficiency of the job site because the sturdiness and durability of the structure relies on the products resulting from them.
The concrete forms used by builders in the United States have come a long way from traditional plywood to metal or combination. It’s not so long ago, just in the 1990s, when modern concrete forming systems have been fully embraced, and there is no denying the impact that it’s made in the construction industry.
The new technologies incorporated in formwork installation have not only increased productivity but cut down on construction expenses as well. Apart from improving efficiency, this new technique also ensures structural integrity. It’s no wonder many contractors are beginning to invest in modern concrete forming systems for a more lucrative enterprise.
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Despite the increasing popularity of modular and shipping container construction, concrete is still the most important building material, and for good reasons. Its compressive strength is unparalleled; no metal can rival it. In fact, metal is good at resisting tension, not compression. This is why in most structures, concrete and metal always go together and form what is known as reinforced concrete. Here’s a quick look at how concrete is prepared and poured into formwork.
Preparing the Formwork
There are other steps preceding formwork preparation but it’s this part where concrete actually starts to be involved. Concrete forms are crucial in the building process because they hold concrete until it hardens. They are made from wood, metal, or plastic, although in most large projects where huge volumes of concrete are involved, metal forms are the best option. There are suppliers that offer metal concrete forming systems to builders to help them achieve the best result.
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Concrete is a tough material to work with, but with the right mixture and curing it can provide the support and protection your structure needs. To achieve this, a well-built formwork is necessary. This is a temporary set of molds where the concrete
is poured and left to dry. Here are the most important factors a builder should consider when setting up formwork.
There are at least three types of force at work when liquid concrete is poured into a mold—vertical force (the weight of concrete or gravity’s pulling force), horizontal force (the pressure liquid concrete exerts as a reaction to restraint), external force (the pressure exerted by the reinforcing bars, vibrations created by tools, and the weight of people working on the formwork). The main goal in designing formwork is to be able to effectively resist these forces until the concrete cures completely.
Every well-built structure made of concrete started out as bare skeletons of reinforcing bars and scaffolds. The hard concrete that conceals them now originates from a fluid, moist mix of cement, gravel, and sand. How they turned into perfectly shaped solid is actually the formwork’s doing. A formwork is a temporary mold where concrete is poured and allowed to harden until it’s ready for curing.
Concrete forming systems have come a long way from consisting mainly of wood planks supported with studs to plastic, fiberglass, or aluminum sheathing. Aluminum concrete forms are among the most widely used formworks these days, and it will definitely make a huge difference in your building project. Here are some more facts that you need to know about concrete forming systems.
Factors Affect the Formwork?
There are two factors that affect how well a forming system works: the rate of concrete pour and lateral pressure. The rate by which the concrete is poured affects how fast the concrete walls are formed. Basically, the faster the concrete is poured, the wider area is covered per pouring period, and therefore the faster the entire structure will cure. Read more from this article: http://bit.ly/2I6vCi5