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Blackoak

Grounds Maintenance at Premier Inn

Grounds Maintenance Contracts Now Avaialble

By | Industry News | No Comments

As we are expanding we are adding more skills and services to our portfolio and skillset in order to facilitate all aspects of Civil Engineering to our customers to a high standard.

We have been asked many times if we could provide Ground Maintenance in the past and we have unfortunately had to reply in the negative as with the speed and intensity we have been growing we literally didn’t have time to take this aspect of the job on and be 100% confident we were completing it to the best of our abilities.

But times change and now we are extremely happy to say, “yes we can”.

Blackoak can now provide you with Ground Maintenance for any site or complex to an extremely high standard. Whether it be faded line markings, a broken kerb, deteriorating surfaces with potholes or just general wear and tear issues, we are the company for the job.

We are even looking at providing month to month and yearly retainer packages so you know any minor inconveniences with your workplace, car ark or any other property will be dealt with promptly and with minimum disruption.

I’m sure you already know the quality of the work but it doesn’t hurt to solidify those opinions, so here are a few of our recent projects for you to look through.

DFS Car Park Resurface

Thameside Hospital Repairs

All lovingly completed by the Blackoak team 🙂

If this sounds like something that would benefit yourselves then don’t delay, give us a call today…. On 01282 546517

Machine Laid Tarmac

Car Park Extension for Wyre Forest District Council

By | Recent Projects | No Comments

The contract was to extend Bewdley town centre car park by 23 car parking bays.

Method statements and risk assessments were provided to the client before works commenced.

Our first task was to create a safe site and to develop a plan so we could work safely without affecting or interfering with the general public. This required careful planning due to the high usage of the car park.

Excavation was the first job undertaken, using an 8-tonne digger. The site was excavated to a depth of 400mm and all spoil was removed from site almost immediately by grab vehicles to ensure space to work was always available on site. Trees were also excavated and removed promptly from the site.

Once the appropriate area was excavated and all spoil was removed from site we then laid a sub-base providing a clean solid surface to work from.

The next task was to lay half batter kerbs to form the shape of the car park. The kerbs were laid on 150mm beds of concrete and haunched at either side to create a solid structure. All kerbs were swilled with water and cleaned after installation.

Armco barriers were installed at one end of the carpark due to an embankment to prevent the public from going down the embankment.

Once all kerbing and barriers were installed and concrete was set, we then laid a second layer of MOT to create a more level surface. This was then compacted with a 120 sit on roller.

Heavy duty Aco drains were then placed in appropriate areas within the car park to deal with any surface water.

Next came the laying of asphalt. Firstly using a base course (AC32 dense) at an 80mm depth, and then a binder course (AC20 dense) at a 60mm depth and lastly applying a 40mm surface course (SMA AC10 dense). All layers were compacted individually.

The site was cleaned extensively and all site safety was removed to allow for the opening of the car park extension.

When work had finished on site we received positive feedback from residents of the town on how happy they were with the manner in which the work was carried out.

As a result of the work successfully undertaken on this project, we have been offered a larger contract from the same client.

Surfacing at Tameside Hospital

By | Recent Projects | No Comments

Blackoak Surfacing were contracted to do three separate projects for Tameside Hospital, which has led to other work at a number of hospitals around the UK.

The first project was to repair sunken gullies, which were placed in a bus stop within the hospital grounds.

This proved to be challenging due to the location of the site and the busyness of the hospital.

Regular communication with the client was required during the works to minimise interference to the hospital’s patients and staff.

Once arriving on site and meeting with the client to go through all safety procedures we sectioned the site off from the public with barriers and put up clear signs notifying the bus stop will be temporarily out of use and that an alternative bus stop had been arranged.

It was our duty to ensure all Blackoak Surfacing staff were polite and understanding towards the public and to provide a safe and friendly environment and service.

These works took one day to complete and included replacing four kerbs and two gullies, which were laid on a quick setting concrete mix so the bus stop could be in use soon after works had finished.

The second part of the works included grading of an existing surface on a deterring path.

Once the surface was graded and all waste was removed from site it was then our job to apply tack coat emulsion and AC6 surface asphalt layer. This was compacted with a vibe roller.

The third project was to resurface a flagged path.

We firstly removed all the flags from the site. This was done manually and flags were placed straight onto the back of a lorry.

We then chopped the grass at either side of the path to create a neat edge.

Edges were then formed with the use of wooden battens to retain the infill of the paths.

The paths were then levelled with stone and compacted with a compactor plate.

AC10 Asphalt surface course was then laid neatly to the paths and compacted with a vibe roller.

Each project created its own challenges, which were easily managed with good communication between Blackoak Surfacing and the client along with extensive planning.

Health and safety were our main priority during these works.

Machine Laid Asphalt Scarborough

Car Park Resurface for DFS

By | Recent Projects | No Comments

The job was to resurface a large car park and plan and construct a drainage system to solve the major flooding problem the car park was having, which prevented customers visiting the store.

Firstly we visited the site and performed an extensive site survey to determine the high and low points of the car park.

When this was completed we planned where the drainage would go and marked this clearly.

We then set up a safe working area. This was done in sections, as we had to keep parts of the car park open during works.

Trenches and holes were excavated to allow for pipe work and gullies to be installed. This was done six times and all drainage pipes ran back into existing drains. All waste collected from the excavations were relocated to an appropriate area on site before being collected from a grab lorry.

Once installed all gullies were checked to ensure they ran efficiently and effectively.

Sections were cut with a road saw at the entrance of the car park to allow the surface course to tie into the existing road surface.

A tack coat emulsion was then applied to the complete surface area of the car park by a machine.

A machine paver then laid asphalt. A total of 200 tonnes was laid and compacted with a 120 sit on roller. All edges and tight spots not accessible by the roller were compacted with a compactor plate.

Car parking bays and direction arrows were then painted on before the car park was reopened.

The car park no longer has any flood issues, which will give the new surface layer a longer life expectancy and not deter customers from visiting the store.

asphalt-uses-road-car-parks-blackoak-surfacing

All About Asphalt a mixture of aggregates and filler

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What is asphalt?

Asphalt is a mixture of aggregates, binder and filler. Aggregates used in mixtures can be crushed rock, sand, gravel or slags. In order to bind the aggregates into a cohesive and easy to mix substance a binder is used. This is most commonly bitumen as its chemical properties make it effective at locking and holding the mixture together.

What is it used for?
Asphalt has many uses, which it is why it is such a common and widely used product. As a material, it is a highly versatile and long lasting product. Here are some of the ways it can be used:
• Infrastructure (roads, railway beds or airport runways, taxiways)
• Recreation (playgrounds, bicycle paths, running tracks, tennis courts)
• Agriculture (barn floors, greenhouse floors)
• Industrial (ports, landfill caps, worksite)
• Building construction (flooring).

Ways of laying the material

Hand Laid
Using the hand laid method completes the majority of small and awkward jobs. This method is usually chosen when the job does not require complicated means of laying the material and plant is not available. This method comprises the asphalt being brought to the job on the back of a wagon covered by insulated sheets or in an insulated vehicle (hot box) to keep it workable. Then it is generally dropped or shovelled into wheelbarrows and taken to the area required. The skilled contractor will then use his experience to rake it level and ready to compact.

Machine Laid
As a material, Asphalt can be laid in large areas such as highways and car parks using pavers. It is added to the paver via a wagon or other suitable plant into a heated hopper housed in the machine at a temperature around 180°C. It is then distributed onto the surface and spread evenly leaving a smooth surface ready to be rolled and compacted vigorously to ensure stability and durability of the surface. This results in a solid and smooth surface. This process can be used for both binder and wearing courses and is perfect for car park surfacing or resurfacing.

Fun Facts

1. Asphalt is the predominant material used for road construction and maintaining the road network in Europe.
2. 25% of the total world’s production takes place in Europe.
3. Europe has over 2,500 production sites and over 9,500 companies are involved in the production and/or laying.
4. Some people still talk about tarmac or tarring a road. Since the 1990’s tar is not used anymore in road building.
5. Tar is totally different from bitumen. They are both black, but tar comes from coal and bitumen comes from heavy crude oil.

Further Blog Posts

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What is a HSG47 in the Health and Safety

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The HSG47

(Avoiding danger from underground services)
The HSG47 refers to Article 47 of the Health and Safety Guidance Act. It outlines the dangers, which can arise from working near underground services and gives advice on how to reduce the risk.

Where the HSG47 guidance applies:

• This guidance applies to situations where underground services may be found and where work involves penetrating the ground at or below surface level.
• For road resurfacing, where ground penetration is contained within the wearing and base courses, the services encountered are likely to be limited to traffic sensor cables. Care will still need to be taken, in particular, to avoid damage to surface boxes for valves, pressure points, test points etc.
• All other work will be covered by this guidance including work in footways and kerbing, regardless of depth, as underground services may be found near the surface.
The dangers of underground services

Damage to underground services can cause fatal or severe injury. The main dangers and their effects under HSG47 are:
Electricity cables (Fire risk, explosion, electrocution, unrepaired live wires)
Gas pipes (Fire risk, explosion, leakage)
Water/sewage pipes (Pollution of water, flooding, mixing with gas pipes)
Telecommunications (Disruption of services, expensive repairs)

How to avoid the dangers of underground services when conducting work

A safe system of work has four basic elements:

1. Planning the work;
2. Plans for the work;
3. Cable and pipe locating devices; and
4. Safe digging practices.

Planning
This is where the designs for the planned work is conducted, where work is planned in advance to avoid certain services and where any required permissions and permits can be identified and acquired. This is when The CDM (Construction Design Management) is conducted so that management of the dangers can be assessed and built into the construction plans.
Plans

This is where plans for the design process are produced. These plans show the exact details of the required project, showing the location of work and location of underground services and how measures will be taken to work on these services and the health and safety measures taken to prevent injury.

Cable and pipe locating devices
This process involves using detecting instruments to detect pipelines or cables to exact measurements to ensure the location of the pipeline/cable matches with the plans of the project to ensure construction/digging practices can be undertaken safely and accurately.

Safe digging
This is where the digging/construction process is carried out using safe and protective means of construction. This involves indicating and marking where pipelines/cables are located in the ground; avoiding damage to services, prohibit the use of power tools near services and the proper reburial of all exposed services after the project.

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