What’s new in soil stabilization

Published on: 21 November 2018 Last Updated on: 13 December 2021
soil stabilization

With increasing urbanization, population growth and the need for reliable infrastructure, it’s not surprising that the need for a diverse set of soil stabilization techniques suitable for a variety of soil and project conditions has seen matching growth. In 2017, the global soil stabilization market reached a massive US $22 Billion, and is expected to reach US $29 billion by 2023. Here we take a look at some of the soil stabilization techniques leading the field in innovation and market growth.

Chemical stabilization through the addition of Lime:

The addition of lime, lime kiln dust or quicklime is a popular form of soil modification and stabilization for all types of soft soils, especially wet, fine-grained and clay soils. Essentially it reacts with clay molecules, which hardens and dries out the soil with which it is mixed, improving stability and soil compressibility.

Lime is the oldest soil stabilization technique still in use today and can be greatly advantageous for particularly muddy construction sites which make accessing the site difficult, and it’s also cheap. It does, however, have several disadvantages too. The production process is very energy intensive, resulting in large CO2 emissions, as high as 1.2 tons of CO2 per ton of lime produced. Achieving homogenous application is tricky, there is risk of environmental toxicity, and application over very soft soil is problematic due to the heavy earth-mixing equipment required for application.

Mechanical soil stabilization through the use of Geocell engineering:

Although geocells have been around since the 1970’s, the increasing global demand for more environmentally sustainable and cost-effective construction techniques has seen renewed interest in their use. Geocells – a type of geosynthetic – are constructed from strips of a novel polymeric alloy called Neoloy, which are welded together to form a honeycomb-like grid when stretched out on site. They are then filled in with local granular materials that are readily available, such as sandy soils or even recycled asphalt paving (RAP).

The main environmental benefits include the ability to utilize local granular materials for infill rather than hauling in high-quality aggregates from quarries, a reduction in the required pavement thickness, improved durability of projects, and the ongoing cost benefit of reduced maintenance requirements.

While awareness of this technology remains its biggest challenge, it is gaining a reputation as a good option for projects with poor soil or challenging environmental conditions. One prime example of this was the construction of an all-weather access road for MEG Energy in the Muskeg peat bog, which made use of geocell engineering in Canada. Some of the challenges facing the engineers on site included moving vehicles and materials around on the saturated, acidic soil, as well as subzero winter temperatures, extremely poor drainage and heavy rains which meant much of the site was essentially a swamp – described, in fact, as an ‘engineering nightmare’.

An example of the less than ideal working conditions – geocell layer visible in back

Because the peat bog soil was too deep and poorly drained for soil replacement, it soon became clear that the use of heavy-duty Neoloy geocells was the only feasible solution. Local geocell experts designed a reinforced road using one to three layers of Neoloy geocells, depending on the saturation level of the area in question. Once in place, the geocells were filled in with sand from locally available borrow pits and then compacted. The geocell layers formed a semi-rigid mattress, or a ‘floating road’ over the swampy soil. The benefits of geocell mechanical soil stabilization include: reducing stress by distributing vertical loads and extending the life of the road – meaning that even heavy rigs and construction equipment could now traverse the peat bog on a regular basis.

Compaction grouting for sinkhole remediation:

Building much-needed apartment housing is one thing but doing so on an area of land which is essentially one giant sinkhole is another matter altogether! This was the challenge facing contractors trying to put up a new five story complex in King of Prussia in Montgomery County, Pennsylvania. Understandably, no work on the apartment building could begin until the underlying dolomite subsoil was stabilized. The solution they arrived at was the use of compaction grouting, which involves drilling columns in a grid-like pattern, and then injecting a low-mobility soil-cement grout into the holes at high pressures. This process compacts coarse-grained soils and displaces fine-grained soils, allowing the construction site to withstand higher bearing pressures and reduce settlement – both very important in an area to prone to sinkholes.

Under normal conditions, a soil profile increases in strength with depth – but on this site, the dense clays were on the surface, with weaker soils above the bedrock – hence the tendency for sinkholes to form. Drilling down to reach the unstable layer was therefore the best solution in this scenario. To complete the stabilization, the contractor – Compaction Grouting Services, Inc. or CGS – needed to drill 626 separate holes, and pump in 820 cubic yards of grout at an average pressure of 300 psi. And despite a number of challenges, including snow, rain and muddy conditions as well as a small sinkhole which opened up in an area which hadn’t been grouted – they managed to finish a day ahead of schedule.

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5 Uses of Natural Gas

We all are aware of the natural gas which is been used from last 19th-century consist of the methane and the naturally occurring hydrocarbon gas. All the gases that are present in the natural gas are naturally present in the atmosphere, after that it is converted into the usable form. There are several uses of the natural gas which we will discuss in this blog, so, just check out the information below: 5 Uses of Natural Gas: It can be used for the heating purpose: Firstly natural gas can be used for heating purposes in cold regions. In the region like America, natural gas is used for the purpose of the heating and its produced heat is warmer than the electrical pump. Used as the fuel: You must have seen vehicles that are operated by the CNG or compressed natural gas which is the compressed form of the natural gas. This can also be used as a coolant in the air conditioners so, that they can easily work efficiently. This is very much cheap as compared to the diesel as well as petrol. For producing electricity: Mainly, the natural gas is used for producing electricity and in the United States, around 25% of the population is having power supply generated by the natural gas. Moreover, the usage of natural gas is not as much harm to the atmosphere. It can use for the purpose of cooling: There are many air-conditioned units that are made by the natural gas, but on the other hand, this process is pretty much costly. Through, this the customers can easily save their electricity bills and can reduce the maintenance cost. It can use for the purpose of drying clothes: Last but not the least natural gas can also be used for drying clothes. If we talk about the advantage of using the natural gas for drying clothes then they can save a lot of energy as compared to the electric appliances.  If we talk about the storage then they are relatively easy to store and they can be easily transferred or taken from one place to the other with the help of the pipelines and the services providers who deal in providing such services are known as the Energy Assessment Services provider. What are the various advantages of Natural Gas? As we have already discussed that natural gas is not harmful to the environment as compared to coal and petroleum. The presence of the natural gas is more as that of the coal and the petroleum. The usage of the natural gas is completely safe as this is lighter than the air. The usage of the natural gas provides instant energy which means that there is no pre-heating required prior using this. This is the reason why the natural gas is used in microwaves Owens. Although, besides all these uses; the natural gas is also used for the industrial as well as commercial purposes. For availing all the benefits you must have the best Natural Gas Products that you can easily get from the online store or offline store. Read Also: Lubricating Gas Turbines Is Key To Performance Waterjet Vs. Laser Cutting: Which Is Worth The Hype?

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centipede grass seed

Centipede Grass Seed – Benefits, Types, Consequences, Time-lapse, Maintenance [Full Guide]

Are you searching for lawn grass that requires low maintenance and nutrients? Are you searching for a grass seed that can be cut easily as compared to other types of grasses? Have you ever heard about centipede grass seed? Have you ever wished to do a morning walk on your grass lawn and wanted your children to play on it? Though taking out time for your grass has always been an issue. However, if you still want to have your lawn grass, then you can continue reading this article. So first, know what are the centipede grasses? And what are the centipede grass identification areas? What Are Centipede Grass? Centipede grass is an everlasting turfgrass as it requires low fertilizers and minimum maintenance for infertile and sandy soils, etc. Centipede grass seed produces a good amount of turf with minimum management and low fertility. It is a popular pick for turfgrass in the south as it is perfect for southern and coastal areas. 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Some important characteristics of this grass seed are as follows: It has a rotating cutter(rotating mower). Centipede grass seed is best suitable for acid soils (5 - 6.5 is the pH range). However, It should be fertilized very casually. It is a trouble-free grass than other types of grasses if not cared for properly. Centipedegrass is a warm-season grass, and it is very sensitive to the cold season. Centipede is very sensible to alkaline soil. It is a more-shade tolerant grass. Pros Of Centipede Grass Why Centipede grasses are a commercial business handler’s best choice. If you have a hotel, then you obviously want to see a green field infront of your business areas. And this is only possible when you are planting the seed of centipede grasses. There is a wide range of uses of Centipede grass seeds, such as: It requires low maintenance. These grass seeds are adequate to accept the environments of the acidic soils. Even in low fertility conditions and soils, these grasses can grow. 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Mayberry Centipede seed requires low maintenance. 3. The Dirty Gardener Centipede Grass Seed View on Amazon It is a fabulous warm-season grass that grows in acidic and sandy soils. Up to two- thousand square feet, each pound of seed covers. Non-GMO seeds have a great germination rate and consist of no filter. For a low maintenance lawn, it turns to centipede grass. 4. Gulf Kist - Premium Centipede Grass Seed View on Amazon It improves survivability and germination. More shade tolerant than Bermuda Grass seed. It is also ideal in a steady rainfall with a hot climate. It is a premium quality product. Gulf Kist tolerates medium foot traffic. It is a coated grass seed protected without added mulch. 5. TifBlair Centipede Grass Seed (1 Lb.) Direct from The Farm View on Amazon Each 1 lb. a bag will include up to four thousand square feet. It is a coated seed without mulch so as to improve germination. 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There is also centipede fertilizer available in the market for centipede grass seed. You must also know that purity plays an important factor in centipede sod farms. You can imply the above tips of the centipede grass seed for yourself. Please ask if you have any queries in the comment section below.   Read Also: Bud Producing Feminized Seeds How To Grow Tomatoes From Seed 4 Essential Tools Needed to Maintain Your Garden in the Winter    

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Rubbish Removal

Clearabee Makes Rubbish Removal Fast and Easy

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