In Australia there are a number of historical buildings and locations, often referred to as ‘heritage sites’ or ‘heritage listings’, with systems put in place that govern how they are protected and maintained; such as the Burra Charter. The specifics for how something becomes a heritage site differs from state to state, but in general, an application must be made to the relevant governing bodies who will then determine whether the site in question will be listed as heritage.

Heritage listed sites are often quite old, usually built with materials that are no longer in production. This can make the maintenance on heritage listings fairly intricate and challenging, but there are a number of reasons why it is important to do so. If you don't keep on top of everything that needs doing, problems will pile up and often escalate, leading to more expensive work requiring to be undertaken.

Originally introduced in 1979, the Burra Charter was originally adopted for the protection and preservation of the historical mining town, Burra, in South Australia. Since the its inception, numerous people have collaborated and worked to update it, ensuring that the charter continues to be a source of not just relevant theoretical information concerning the maintenance of all heritage buildings, but also the practical. To date, in Australia, it remains to be the chief source of information regarding the proper procedures that should be followed when undertaking works on heritage sites.

One of the more tangible reasons to make sure a heritage site is looked after and doesn’t fall into a state of disrepair, is that they can be great for promoting financial growth in an area. This is mostly due to tourism, as people will come from far and wide to see a little piece of history. This is especially important in more remote and rural areas of the country.

Another reason for the protection of heritage listings, is the preservation of history and culture. Often times these sites offer a snap-shot into the time period of their development, which offers a unique insight into what it was like back then. Architecture and building technologies of a period have always lent a unique perspective otherwise unobtainable into what a society would have been like.

We would be remiss to not mention that another reason for their protection is for an artistic sake, so that future generations can appreciate the marvels of yesteryear. Photographs and videos can only do so much, and it is unlikely that actually visiting a site and seeing it with your own eyes will ever be beaten.

​Although many of these sites can be tricky to maintain and prevent dilapidation, don’t worry. Here at BellMont we have the benefit of almost 20 years’ experience in the field and we’re ready to help.  

So if you’re looking for an engineer to help you with a heritage project, contact us today.

It’s well known that concrete is one of the world’s most used building materials. Considering its extreme level of versatility in its use, portability and affordability; it makes sense. Coming in a variety of types, with most of them being largely comprised of similar substances, it can be hard to see why there are so many concretes on the market. However it’s those small and often subtle changes from formula to formula that make all the difference. At BellMont we believe it’s important that people stay as informed as they can about the products they’re using, so they can make better decisions towards achieving their goals.

That’s why we’re taking the time to talk about some of the most common kinds of concrete and the sort of work they are suited for.

• Normal: When someone mentions the word concrete this is probably the kind that first jumps into your head. This is probably close to, if not, the most common kind of concrete used in the modern world. It is categorized by the ratio of cement to aggregate and water being 1:4:2 respectively. Normal concrete is mostly used for pavements, driveways and other things that don’t need to be under a heavy load, or for decoration. The reason it is used in decoration and aesthetic work is that it is quite workable and it can be stamped easily.
• High Density: These kinds of concrete are the densest you will find on the market, being categorized by any concrete that weighs 3000 - 4000kg/m3. It is used in construction of nuclear power plants, x-ray rooms, and anything else where radiation may be involved; as it offers protection from it.
• High Performance: This is another widely used concrete and is defined by how workable it is, its early strength, and overall longevity. High performance concrete is the closest thing to something that can do any job, being used in the widest range of situations
• Lightweight This is a special kind of concrete that is used primarily for protecting steel beams. It is also effectively used in bridge work, for long spans of concrete deck that needs to be poured. It is categorized as any concrete that weighs less than 1920kg/m3.
• Asphalt: This is probably something that most people don’t associate as being a concrete, but it is in fact one of the most common used worldwide. Asphalt concrete uses Asphalt, in conjunction with other aggregates in its mixture, and that is how it is categorized. The Asphalt that is present within the mix is what gives this cement its distinct look. Typically Asphalt is usable within an hour or so of being poured which is why it’s a popular choice for roadworks, car parks, runways, etc.
• Polymer: This is a special kind of concrete, which uses polymer as an aggregate in its mix.  Polymers are used because it reduces the amount of void in the concrete. Because of this, the overall strength of the concrete is improved, as well as helping it with waterproofing. There are a few different ways that the polymer material can be introduced in the concrete, and the uses vary between them, however in broad terms this kind of concrete is used commonly in remedial works, underwater construction, and bridges.
• Limecrete: Arguably the oldest form of concrete to be used, lime concrete, or limecrete, uses lime instead of cement in its mixture. Lime is a naturally occurring substance, as such its carbon footprint and overall impact on the environment is reduced when compared to other kinds of concrete. It is largely used decoratively for things such as floors, domes, vaults.

That about covers our quick look into the most common kinds of concrete and their common applications. We hope that from now, you’ll have a little better understanding of some of the products that get used on your site, and you’re better equipped to make a decision.

One the most deceptive and destructive phenomenon in the construction industry, that happens more often than you would think, is structural sinking or technically known as subsidence. There are a number of reasons that things start to go Titanic in construction, but all of them relate to the way the ground a structure is built on shifts over time. So here is a quick rundown of some of the causes, as well as some advice to minimize its occurrence on your construction projects.

Do your research
Subsidence can occur during construction, when the proper measures to account for how much the kind of soil your building on will shift over time aren't followed. Different kinds of soils will move and settle in different ways. It's important to know exactly what kind of ground you are building on so you can prepare it correctly. If you don’t, over time the ground underneath the building will move in a way this hasn’t been compensated for, ending in another case of sinking.
 
Proper preparation
Subsidence can also occur when the ground that a project is being built upon hasn’t been prepared properly for the construction that will commence on it. In circumstances where construction happens on improperly prepared ground, after a time the soil that the structure sits on, will compact under the weight of the structure and cause the site to shift. Resulting in an unstable construction, cracking and eventual subsidence. Our advice is to make sure that all protocols are being kept to at all stages of the project.
 
Know where you stand
Another big cause of subsidence is a lack of compensation for how reactive the soil being built on is. Some areas have soil that has a higher concentration of clay, which will expand when wet and contract when dry, which can be an issue in areas prone to drought or floods. Other areas will have a lot of gravel or stony soil which are more susceptible to shifting when nearby sites are excavated or disturbed. So knowing what kind of environment you are building is just as important as knowing what you are building on.

If you're concerned about any subsidence issues that you have, BellMont is able to help you. Feel free to contact us and see what we can do for you.

​With the construction industry and associated professions thriving. We want to delve into the skills that set a successful engineer apart from the crowd. An engineer who possess the following five skills has the power to turn any building situation around. Read on to find out more!

1. Excellent Communication skills
The number one skill civil engineers should possess is, excellent communication skills. Construction sites are one of the most dangerous work spaces, therefore an engineer should leave little room for error and miscommunication on site to ensure work progresses smoothly. Although the professional involves a lot of technical language, civil engineers should have the ability to communicate issues, ideas and plans clearly to not only a team of industry professionals but those unfamiliar with the field.

2. Attention to Detail
This is most certainly an important skill for an engineer to have when assessing defects and offering solutions. Engineers must ensure during inspection that they have a high level of attention to ensure all defects are identified and nothing is forgotten that could lead to a more problematic issue for the client later in the project.

3. Time Management/Organisational Skills
With the construction industry thriving at the moment, engineers are in demand, which means they must be organised and have amazing time management skills to ensure they can manage all the projects they are involved in while maintaining a high standard of work. In addition to this engineers should ensure that they keep up to date with projects, that the project is progressing well and most importantly that the client is satisfied with works thus far. Just remember, in construction, time is money and you don’t want to waste the clients’ money by being unorganised and way off the estimated time and budget for the project.

4. Critical thinking
Engineering involves a combination of maths and science to determine the best long term solution for a building with an issue. Engineers must use their critical thinking to solve the issue at hand while also remaining inside budget, a certain time period and with as minimal as risk as possible. To factor all these in for every single project and pull each project off successfully takes a special kind of person!

5. Adaptability
There may be constraints placed on an engineer during their time on a project whether it be time, money, space or condition of the building to name a few. Therefore, an engineer must be ready to offer alternatives ways to achieve what the client desires. This skill is a test of both creativity and flexibility for the engineer and how well they know their profession to find a way around the issue that is effective, sustainable and satisfactory. An engineer’s ability to be adaptable will also prove valuable when an unforeseen issue  requires immediate action arises on site .