About Us

Our proposal

 

LMI Group Investments Civil and Environmental Division undertakes civil engineering and construction works for all your landfill project requirements. LMI self-performs its projects from start to finish. From procurement of geosynthetic and quarry materials to onsite QA testing and commissioning of the works. We have proven to our clients time and time again that we perform work to the highest standard of workmanship in Australia.


LMI’s team has considerable experience in managing civil projects with highly skilled personnel. LMI has a variety of construction equipment available to undertake environmental remediation and civil construction projects throughout Eastern Australia. 


The core strength of LMI is its capability to integrate civil and remediation projects with its own internal resources in haulage, equipment availability Geosynthetics Welding equipment, contaminated soil recycling and provision of clean fill materials from trusted quarry sources or resource recovery facilities.


Among LMI’s bulk excavation, strengths include; access to internal bulk transport fleets and access to final disposal sites and resource recovery facilities to ensure that disposal and recycle efficiencies are fully explored. The key to cost effective bulk excavation success is the ability to minimise disposal costs. LMI’s key understanding of waste resource recovery processing and blending places it in a unique and forefront position in the industry, allowing for the creation of usable construction material products. Our team retains over 10 years of experience in civil and environmental works projects. Our in-house engineers utilise the highest standard of advanced industry software to provide the most accurate designs, estimations, scheduling and documentation to meet the demands of your project specs and requirements.

Kembla Grange Landfill

Kembla Grange Landfill

Materials

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Aggregates

 Construction aggregates are used as a base material for roads and railway, and other structures that require stability. Due to their high hydraulic conductivity value, they are widely used in landfill and other drainage applications; including septic drains, road side drains and retaining wall drains, as well as in the filter around pipes.


All LMI’s Landfill aggregates will comply with the below minimum standards:


• Drainage layer aggregate size to be less than 50 mm and greater than 20 mm
• Fines content to be less than one per cent
• Aggregate material should not contain limestone or other calcareous material that would be subject to chemical attack

Road base

Road base products, as the name suggests, are often used in the construction of road pavements; which are made up of several layers of material of varying property. Road bases are generally classified into two main supply categories, as a “sub-base’ material and as a “base” material; which when placed at the correct moisture content and compactivity effort, form rigid layers able to distribute traffic loading from the pavement surface to the ground beneath.

Road base materials that LMI supple will satisfy the requirements of the selected specification for a given application. 


LMI supplied road bases are suitable for use in road construction and related structures; LMI ensures that they are consistently supplied and regularly sampled and tested to ensure the selected material remains compliant with the relevant works specifications or industry requirements.

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Fill Materials

Select fill is a clay, sand and soil material that is used in an application such as retaining wall backfill, land grading or as specifications require. Generally, most select fill used underneath concrete foundations or paving will have a low to medium plasticity index (PI) to replace or mitigate highly expansive clays. Most select fill soils are qualified prior to and during placement by the project engineer on a job by job basis by means of sampling the material at the source or at the job site during installation.


Other backfill materials, including stone, structural fill and recycled products, are also readily available.

Large Rocks

With access to multiple Australian quarries, we can provide our valued clients with the highest quality products and services. LMI can supply the below range of natural large rocks which range in size from 100mm-1500mm.Other backfill materials, including stone, structural fill and recycled products, are also readily available.

Granite is widely used in construction due to its high load bearing capacity and fracture resistance. Compared to more porous rock such as sandstone, granite is harder, more weather resistant and deteriorates at a slower rate.


Sandstone is one of the most common types of sedimentary rock and is found in sedimentary basins throughout the world. It is often mined for use as a construction material or as a raw material used in manufacturing. LMI has a wide range of sandstone suitable for your project or home.


Porphyry is a type of hard, igneous rock that is formed when rising magma in a volcano is cooled near the surface under certain conditions. It is considered to have a similar appearance to sandstone but with a much harder and more durable texture.

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Decorative Pebbles

 Our varied, affordable, and colourful range of landscaping pebbles and stones enhance landscaping projects and home builds through strict quality management from source to site. For a greater level of definition and variation we also provide authentic river rocks and stones for landscaping to increase the appeal of your property’s exterior.


LMI offers a wide range of Decorative Pebbles as shown below. We sell these at a minimum load of 6m3 or 9 tonne and are delivered by LMI in single or double tipper trucks.Other backfill materials, including stone, structural fill and recycled products, are also readily available.


LMI offers a wide range of Decorative Pebbles as shown below. We sell these at a minimum load of 6m3 or 9 tonne and are delivered by LMI in single or double tipper trucks.

• Gabion Crushed – 50-150mm
• Blue Grey – 20-60mm
• Peaches and Cream Crushed – 20-40mm
• Sandstone crush – 20-40mm, 40-75mm and oversize
• Sandstone tumbled – 20-40mm, 40-75mm and oversize
• Western red washed – 20mm

Engineering Clay for Landfills

LMI supplies, transports and installs engineering clay liners for predominately landfill projects. Clay barriers are generally used as liners and capping materials for landfill sites. In each case they isolate potentially polluting wastes from the surrounding environment, such that the environmental impacts attributable to a landfill are minimised.

Before clay is used to construct a liner, samples of the clay to be used are collected and submitted to a laboratory for determination of the soil properties for a range of compaction efforts. This will enable the development of laboratory compaction and hydraulic conductivity curves; something that should be assessed to determine the suitability or otherwise of the material as a low-permeability barrier.


Clay liners are constructed in series of ‘lifts’ compacted to the required maximum dry density at the specified moisture content. To achieve bonding between each lift, the thickness of each lift must permit the compaction equipment; typically, a sheepsfoot roller, to penetrate the top lift and knead the previous lift.LMI offers a wide range of Decorative Pebbles as shown below. We sell these at a minimum load of 6m3 or 9 tonne and are delivered by LMI in single or double tipper trucks.Other backfill materials, including stone, structural fill and recycled products, are also readily available.

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Top Soil

Topsoil is a mixture of sand, silt, clay and broken down organic matter, called humus. Humus is rich, highly decomposed organic matter mostly made from dead plants, crunched-up leaves, dead insects and twigs. LMI will supply Imported topsoil from approved material sourcing. Topsoils will consist of a friable sandy loam textured material and shall be free from any material toxic to plant growth, free from noxious weeds, seeds and roots. 

Crusher Dust

Crusher dust is a common by-product of mining and quarrying and has many practical applications in construction. Using crusher dust in lieu of other materials can have resounding environmental and economic benefits.


With fine particles like soft sand, crusher dust can be used as a cost-effective filling and packing material around water tanks; blended with natural sands to improve concrete shrinkage and water demand; and as a material to back-fill trenches with. It can also be used as a concrete aggregate used to create distinctive textures and as a substitute for concrete when creating pathways and driveways.

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