sand and stone supplier

River Sand as An Important Material for Sustainable Building

River sand is an essential part of construction projects because of the texture, hardness, and size of the material. River sand provides strength to a constructed structure because of its hardness and its composition of exceptionally fine particles.


River sand is gathered from the banks of rivers. However, it can also be produced by a wash plant at a quarry. The material is normally light in colour and consists of particles that are mostly round. It is often used in applications such as plastering. It is, however, essential that the sand be clean and free from clay, debris, organic materials, and stones. The sand can be categorised based on particle size. Exceptionally fine sand consists of particles ranging from 1/16 to 1/8 mm in size, with fine sand ranging in size from 1/8 to 1/4 mm, and medium sand from 1/4 to 1/2 mm. Coarse sand has a diameter range of 1/2 to 2 mm, with very coarse sand being 1 to 2 mm in grain size.

Very fine river sand is best in terms of the sustainability of construction, but the sand grade that you are going to use depends on the particular building application. River sand is widely used in the construction industry for the making of concrete. Sand is also popular for the surface of horse arenas. What makes it well suited for construction projects is the fact that it has been exposed to flowing water and washing for several years. This means it has a low level of silt and clay content. As such, it makes concrete very workable.

It also reduces the water that is required in the concrete mix. The quality of the concrete mix is thus improved, because it does not contain too much clay that can compromise the strength of the concrete structure. When it comes to top-quality river sand, a silt content of less than 3% is required, ensuring the strength and integrity of the concrete mixes. River sand is also an environmentally friendly construction material in the sense that it replenishes itself in nature and it is therefore a sustainable resource.

It can be used with water, gravel, cement, and even steel to create reinforced and thus extremely strong concrete. When used with only water and cement, it is an excellent plastering material. River sand has all the properties needed to make it versatile enough for construction projects ranging from plastering to brick projects, and reinforced concrete.

View our range of sand and other materials available in Gauteng and give us a call for a quote or to deliver bulk loads to your construction sites.

Selected and Unselected Filling Materials Use – Construction of Embankments

Selected and unselected filling materials are an integral part of road, building, dam, and mine construction. To give you an indication of how these materials are used in large projects, we briefly look at embankments that raise the level of road surfaces above the surrounding earth.

What Filling Is

Unselected or selected filling refers to the materials used for filling an area where the materials are compacted with the aim of filling a depression. An embankment is thus just another type of fill. This type of fill contains anything from soil and aggregate to rock, crushed rock, and sand.

Best Practice in Using Unselected or Selected Filling Materials

In the case of an embankment, the normal procedure is to place the coarse filling at the base of the hole or depression to create a strong foundation for the fill. This also helps to ensure proper drainage and thus avoids a situation where the embankment is oversaturated. The upper part of the depression is normally filled with a higher-quality selected filling consisting of compact, subgrade aggregate that provides the necessary support for the layers on top and for vehicle loads without causing movement in the fill. It is essential to use fill materials of the correct specification and according to its capacity for compaction to the desired density in the remaining part of the embankment. Thin layering of the materials is needed, and each layer must be compacted thoroughly with the appropriate equipment. The rolling compaction method is usually used.

Unselected and Selected Filling Materials for Embankments

The preferred materials to use are sand and gravel, but silt and clay are also sometimes used. Well-graded materials must be used in the fill; such materials must be suitable for compaction and not contain roots, sludge, leaves, metal, or plastic. Rocks and larger stone can also be used for the lower part of the embankment. It is essential that these materials contain strong particles able to withstand the weight and movement of the machinery, but small enough in size to prevent empty or only partially filled spaces.

It is best to use well-graded filling consisting of a mixture of finely grained and granular materials. Though it is not essential, it is better to use filling low in unit weight for less transfer of dead weight onto the underlying surface upon which the embankment rests.

Where to Get Unselected and Selected Filling Materials

Make use of our supply services for sand, rock, crushed sand, and aggregate materials. We are bulk suppliers of selected and unselected filling materials to companies in Gauteng.

How to Choose Aggregate Suppliers for Your Next Construction Project

With the quality of building and construction materials being extremely important to ensure the integrity of structures, it is imperative to select aggregate suppliers able to meet quality and quantity requirements. Whether aggregate is used in a road, bridge, residential abode, or high-rise building, it is essential to only buy from suppliers able to guarantee the quality of their products.

In addition, construction firms need to look at the types of materials available from a specific aggregate supplier, as it is more cost-effective to purchase all base raw materials from one supplier than many. In addition, considering how important it is to have building and construction materials delivered on time to reduce delays in construction projects, buying from companies that have the vehicles and workers to ensure timely delivery just makes sense.

Since longstanding relationships with suppliers is important, it is imperative to select a provider known for integrity and superb service delivery; one committed to client satisfaction and with a thorough understanding of aggregate material types and requirements. Finally, buying from nearby aggregate suppliers makes economic sense. The further a provider is located from the site of delivery, the longer it takes for the aggregate to be delivered. Distance also translates into higher costs. Companies operating in Gauteng thus need to search for aggregate suppliers in the same province.

Sand Masters meets and exceeds all these requirements and has, as such, become a popular choice among large construction companies, mining houses, and roadworks companies in Gauteng. Our fleet of trucks is extensive and clients can rent the trucks with drivers if needed. We specialise in the bulk supply of aggregate and sand materials, ensuring the lowest cost to the client. Our range includes, but is not limited to, products such as G1-G7 sub-base materials, crushed stone, crushed sand, and super sand. We furthermore supply washed and unwashed river and plaster sand, as well as gabion and dump rock.

Knowing how time-consuming the process of site clearance is, we offer rubble removal from sites in Gauteng. As such, construction firms can save time and labour, and thereby costs. This service helps construction businesses to stay within their projects’ budget and time limits. Of course, affordability of the service is important and to this end, we don’t disappoint with highly competitive rates.

Get your construction aggregate materials on time and at affordable prices, whilst also saving on site clearance operations by making use of Sand Masters as one of the best-established aggregate suppliers in Gauteng.

The Role of Unselected Filling in Backfilling Applications

Selected filling is the aggregate materials used for the sub-base in roads and other construction projects but unselected filling is also widely used in the backfilling process. The latter is when soil is put back into a foundation or excavation trench.

Backfilling is normally done in layers. The soil lift is dependent upon the compacting equipment used. In many cases, water is added during compaction, making it easier to get a firmly compacted surface. The process entails, for instance, layers of a particular size, each with unselected filling that is debris-free. Then compaction takes place using the relevant equipment, whereafter the surface is thoroughly watered.

Water jetting is a backfill method in which mechanical compaction is not used at all. Highly pressurised water is applied at the bottom of the fill area. The method is not suitable for heavy clay soils. The water is pumped under pressure and moves the unselected filling material around. After water application, a period of drainage follows to ensure optimal compaction. Another form of backfill is that of flowable fill. In this method, a specific material with a low water-to-cement ratio is delivered as a ready-mix. The trench is covered with unselected filling (aggregate). Once this is done, a flowable fill covers the aggregate.

Base course and sub-base are types of selected filling materials. Stone is crushed to a specific size and the crushed stone forms the sub-base material for roads, paving, concretes, and more. Note that filling in the form of crushed stone is not used for the wear layer, but is perfectly suited for backfilling and base-course applications.

It is imperative to buy selected and unselected filling, sand, and other aggregate materials from a supplier that is near you to ensure quick delivery. It is also important to select a supplier that can deliver the bulk quantities required and can provide in all your aggregate material needs. You want a supplier that is known for quality materials, superb service delivery and reliable supply. We meet and exceed all these requirements. As a firm operating in Gauteng, we are able to deliver large quantities of unselected filling and sand to construction and roadwork sites around Gauteng. We have large trucks that are all well maintained to ensure reliable delivery. Clients can also rent the trucks.

Whether you need crushed stone, river or plaster sand, washed or unwashed sand and rock, or unselected filling, you can rely on us to meet your raw-material needs in Gauteng.

How Important Is the Selection of The Right Aggregate Materials?

Aggregate materials are the core building blocks used in construction projects. Whether used in the construction of roads and bridges or buildings, large quantities of quality aggregate materials are needed. The particle size, consistency, and types of aggregate materials, in addition to the mix-to-cement ratio, all play important roles in the strength, integrity, and durability of the final construction. For road-construction projects you can, for instance, use granite sand of 3-5 mm in size, combined with granite of 5-10 mm in size for strong foundations. The 5-10-mm aggregate materials in the form of granite are used in projects ranging from drainage foundations to buildings, bridges, and roads.

The aggregate materials form the binding components to keep the composites together. If you compromise on the type of aggregate or the quantity in the concrete mix, you can compromise the integrity of the structure. For instance, the 10-20-mm granite stone is ideal for road sub-base preparation and the 20-40-mm granite stone is used for the lower road-surface section just beneath the asphalt layer. The 20-40-mm granite stone is often used where reinforced concrete is needed to ensure strong road surfaces, such as highways, that must carry heavy traffic and large numbers of vehicles daily. The 40-70-mm granite stone is a popular choice for construction projects on industrial sites.

Gravel is not the same as granite sand, but is, nevertheless, one of the widely used aggregate materials for road foundations. Gravel is especially popular, but everything from crushed and natural scrabbled stone to pebbles are used in construction projects.

Find the Right Grade, Size, and Type of Aggregate Materials for Your Projects

We are a bulk supplier of sand and aggregate materials to the construction-, engineering-, and mining-related companies in Gauteng. Among the many types of aggregate materials available from us are super sand, river and plaster sand, G1-G7 sub-base materials, and crushed sand, as well as 9,5-19-mm crushed stone, in addition to Gabion and dump rock.

We can move large quantities of materials in a short time because of our fleet of large trucks. Clients can also rent trucks from us. What further sets us apart as an aggregate-material supplier in Gauteng is our site-clearance service offering. We thus provide clients with a one-stop service.

Make use of our service offering if you want top-quality aggregate materials and sand delivered to your construction project and need help with site clearance.

Why Careful Selection of the Aggregate Material Supplier Is Important

Aggregate material is essential in the construction of buildings and infrastructure. Aggregate material provides the volume or mass to the concrete and is essential to reduce shrinkage. As such, the use of aggregate helps to reduce the costs associated with the large-scale use of concrete.

The largest part of concrete is taken up by aggregates and it is therefore essential to choose the right sizes, types, and quality of aggregates for the particular construction project. The material affects the properties of the concrete, such as workability, strength, shrinkage, weight and durability. In the past, construction companies looked at aggregate material only as the filling component in the cement mix, but the need to build economically and sustainably has changed the way companies look at aggregate.

With aggregate material being cheaper than cement, it makes sense to use large volumes in cement mixes. However, cost saving is not the only reason for using large quantities of aggregate. Cement on its own does not have the same durability and stability as when mixed with appropriate aggregate material. Aggregate is natural material and because natural materials vary in size and quality according to the location where it is mined, getting the same quality and consistency when using two different suppliers is often difficult.

With the above in mind, it is essential to select an aggregate-material supplier that can provide the type of aggregate needed for your construction projects. Of course, you do not want to end up having to buy some material from another supplier because your usual supplier is unable to fulfil in your bulk needs. For the sake of consistency, select a supplier that can provide large volumes of the material.

Types of aggregate material range from sand to gravel, crushed stone, and rock. Make sure you buy from a supplier that can provide in all your aggregate material needs, whether you need fine or coarse material. Selecting the right aggregates is essential and will have a significant impact on the concrete properties. Determine your needs regarding durability, skid resistance, unit weights, absorption, and grading before you buy the aggregate material. Grading is done to ensure you know the maximum particle size, since this will affect the workability, water requirements, and durability of the concrete mix. Of course, with the right water-to-cement ratio, it is possible to use a wider range of aggregate sizes without adversely affecting the strength of the concrete mix.

Make use of Sand Masters as a bulk supplier of sand and aggregate material to the construction industry in South Africa. We offer the quality and consistency you need and can provide in your bulk material needs.

How to Choose Aggregate Suppliers in Gauteng for Bulk-Material Deliveries

Whether you are busy with the construction of a dam, building, bridge, or road in Gauteng, you want the assurance that your aggregate suppliers will be able to deliver the quantity and quality of aggregates needed for the project at a competitive price and at the required time.

Instead of having to deal with several suppliers in Gauteng, you want one reliable supplier, able to deliver most of your material requirements. This narrows it down to only a few aggregate suppliers that meet the requirement. From here, you select the company based on location, turnaround time, size of their fleet, load sizes, and reliability and consistency in terms of material type and availability.

We meet every requirement. We are situated in Gauteng and, unlike many other service providers only able to deliver in smaller quantities, we handle bulk deliveries of 25 m3 or more. Our product range is extensive and includes:

  • Crushed-stone products – crushed stone, unselected dump rock, gabion rock, and boulders.
  • Sand products – red and brown building sand, crushed sand, raw unwashed silica sand, super sand, washed and unwashed plaster sand, and washed river sand.
  • Sub-base products – unselected natural filling, G1, G2, G4, G5, G7, and G9 sub-base material.
  • Garden landscaping – topsoil and compost.

We understand that working with many service providers takes up time and adds to your expenses. To this end, we make it easier and more cost-effective to order in bulk from one trusted provider because of our large range of products and ability to deliver in bulk. In addition to the above products, we provide services such as rubble removal and transportation as well.

Rubble-Removal Services

Removing rubble before or after construction takes up valuable resources. It is time-consuming but has to be done. Our solution is cost-effective. We remove overburden and rubble from construction sites in Gauteng and off-load these at a licensed facility for crushing or recycling, depending on the material.


With a large fleet of trucks able to transport in excess of 25 cubes of aggregates, we provide clients with additional transport services. Our trucks have back-tipping trailers and the truck drivers are qualified, experienced, and professional. The trucks are well-maintained and we adhere to all safety regulations.

If you are looking for reliable and competitively priced aggregate transport, supply, and delivery services in Gauteng, get in touch with our firm as one of the trusted suppliers able to meet your bulk-material needs.

Aggregate Materials in Bulk

A Few Basics of Buying Aggregate Materials in Bulk

Knowing which aggregate materials you require in bulk is essential before you place your order. However, we understand that, with the wide range of aggregate materials available today, terminology can become confusing, especially when bulk suppliers use different terms to describe the same materials. Fortunately, our team of experts knows our products well and are thus in the ideal position to help you make an informed buying decision. The main characteristics to consider when ordering are:

  • Water-absorption capacity.
  • Grading.
  • Dust content.
  • Density.
  • Shape of particles.
  • Size of particles.

Factors such as climate, cost, distance from the supplier to the delivery site, and quality must also be taken into account. To this end, you will appreciate our ability to deliver in quantity at any site in Gauteng. Our prices are competitive and you can rely on us for timeous delivery.

Aggregate Materials

What Concrete Aggregate Materials In Bulk Are

It refers to a range of coarse materials such as crushed stone, gravel, and sand to be mixed with cement and water to make concrete. The materials provide for strength in the concrete mix. Cement, alkali, or gypsum can be used to bind the sand, crushed stone, or gravel. It is essential to determine the right ratio of water to binding material for the particular project. Other factors to consider range from environmental exposure to the surface-volume ratio and more. We recommend talking to our sales consultants regarding the grading of each of the aggregates to determine its suitability for your construction project.

Base and Sub-Base Applications

Such aggregate materials are needed in bulk to act as the support in pavements or road layering. These materials are used as bases and sub-bases. As such, hard and durable rock aggregate is needed. It is essential to consider the hardness and particle shape for layering, as these qualities affect the workability of the material and the compaction that is possible. Aggregate materials are, furthermore, needed in bulkfor road surfaces. In this instance, a bitumen binder is used to bind the aggregates together. Layers are applied in a mosaic pattern. Several such surface layers may be needed, depending on the project.

These are just a few very cursory explanations. We highly recommend speaking to our consultants about the types available from us to determine their suitability for your particular construction or road-building project. We offer an extensive range of products and provide delivery, as well as truck-rental services throughout Gauteng.

Bulk Aggregates for Sale

Bulk Aggregates for Sale – Important Factors to Consider for Concrete Mixes

Finding bulk aggregates for sale is not the problem; the problem is choosing the right materials for the particular construction project. First, let us have a look at what bulk aggregates entail. Aggregate is an inert filling material making up anything from 60 to 80% of concrete’s volume – and it can account for up to 85% of the concrete’s weight. The material determines the thermal, elastic, and dimensional-stability characteristics of the concrete. Both fine and coarse bulk aggregates are available for sale and when deciding which aggregate to choose, one has to consider the desired compressive strength of the concrete

When you are thus looking at the bulk aggregates currently for sale, consider the physical and mineral make-up of the material because this is important to determine the mixture required. In this regard, look at size gradation, texture, bulk weight, and moisture content. These, in addition to the ratio of cement to water, determine the workability, durability, and strength of the concrete.

The shape and texture of the aggregate influence the concrete in its fresh state more than when it has hardened. Rounded and smoother material used in the mix means a smoother and more workable concrete. Crushed stone provides improved bond properties but more cement is needed to ensure optimal workability of the concrete. Rounded and smoother sand provides for better workability. In essence, a rough surface makes for better bonding and thus an improvement in the strength of the concrete. A smoother surface means better workability but less bonding strength.

The grading of the material is also important, as it affects the paste required for optimal workability. The paste is the costly part of the concrete and the aim is to use less paste without compromising the strength and durability of the concrete. The amount of paste needed is determined by the void spaces that have to be filled in relation to the surface that has to be covered. Uniform aggregate particles mean more void space to fill and thus more cement required. Different sizes of particles mean more of the voids can be filled and less paste is needed, reducing the cost of the concrete mix. If more void spaces must be filled, the concrete becomes less workable. It is, therefore, important to achieve the right balance to ensure cost-effectiveness, workability, and strength.

We recommend making use of our bulk-supply and delivery services in Gauteng. We offer a wide range of aggregates for sale and can help you select the right inert filling materials that have the correct grading and shape.

Aggregate Suppliers in Gauteng

Aggregate Suppliers in Gauteng for Bulk Deliveries

If you are a construction contractor or developer, you will appreciate knowing that we, as one of the leading aggregate suppliers in Gauteng, can deliver various aggregates in bulk to construction sites around Gauteng. The aggregates range from the gravel and slag to crushed stone and sand used in construction projects.

As one of the leading aggregate suppliers in Gauteng, we deliver load-bearing filling and infiltrating material for projects ranging from roads to high-rise buildings and railways’ ballast applications. When it comes to roads and railways, the materials are applied where it is important to have resistance to dynamic and static loads and where it is essential that the load be evenly distributed for adequate ground support. It is also used to ensure adequate fluid drainage from the surface.

Concrete aggregate is perfect to reduce shrinkage and strengthen structures. Engineers often use such aggregate available from suppliers in Gauteng for applications such as sewage plants or water filtration. Aggregate forms an integral part of building with concrete. It helps to provide a strong and robust structure that resists cracking. The aggregates are used in foundations of buildings and for bridges.

It is important to remember that the larger the aggregate size, the bigger the voids are between the particles. This means more cement must be used for binding, which will inevitably increase construction costs. To ensure optimal economic efficiency, it is best to use a combination of coarse and fine aggregates when concrete is involved.

We should be your first choice when it comes to aggregate suppliers in Gauteng. We have an extensive fleet of trucks, ensuring that we can deliver the material to the site where requested. Our prices are highly competitive and we provide assistance in the selection of the appropriate materials. With our large trucks and trailers, we are able to deliver large quantities to your site within a relatively short time.

You can also rent the trucks or make use of our other services such as site clearance. The trucks are well maintained, reducing the risk of delays because of breakdowns. Site clearance is important before and after construction. To this end, you will appreciate our experience, equipment, and ability to quickly clear the rubble from a site. This helps you to commence with the building project earlier.

Get in touch if you are looking for reliable aggregate suppliers in Gauteng for bulk deliveries to large construction sites and who are able also to handle site-clearance projects.