To advertise in this section contact Classifieds
Peter Britton on 01952 898516 email:
peter@pitchcare.com
RUBBER CRUMB Samples air-d
must - check with the laboratory you use that they have the resources to be able to meet your deadlines. But, please be aware that some test methods take a few days to complete! The role of the laboratory is critical in any successful construction. Sharon Bruce, Laboratory Manager & Director of ETL, provides a more detailed insight into the usefulness of test data in choosing the right materials for a project:
Test Sequence for a New Golf Green Construction – How Can a Laboratory Help?
After choosing which A2LA- accredited laboratory to use, the next step is sourcing the possible construction materials that are available close to the project. Choose potential sand for the greens rootzone and select drainage gravel for use in the golf green construction. Ask the supplier of the products to send small samples of each potential material to the laboratory. Always check that each supplier has the volume required to supply you through the entire construction. The particle size distribution and pH of the sand should be tested. The gravel should also be tested for its particle size. When these results are available, the laboratory will be able to tell you which sand is compatible with which gravel – this is whether they “bridge” together. Choosing materials which don’t bridge together (without the presence of an intermediate layer) can have disastrous effects on the performance of the green. This is based on engineering principles that rely on the largest 15% of the sand particles bridging with the smallest 15% of the gravel particles. This is calculated mathematically and all results are compared to the 2004 USGA Recommendations. The next step is to select which organic or inorganic amendment is to be used in producing the greens rootzone. Organic amendments include peat, soil, compost (aged for at least 1 year), rice hulls, finely ground bark or sawdust. Inorganic amendments include zeolite, calcined diamtomites or calcined clays (porous ceramics). The laboratory will be able to inform you whether these products satisfy the USGA criteria and hence, whether they will be suitable to mix with the selected sand. After the selection of the initial
products, the laboratory plays an important part in designing the rootzone mix. The laboratory will
in the laboratory prior to testing
help determine which rootzone is going to be best for your project needs. Next, is to prepare a small bulk mix and submit this to the laboratory for testing. This is to ensure that the bulk mix rootzone is comparable to the laboratory- developed rootzone.
test various rootzones mixed from varying ratios of sand:organic or inorganic materials selected for use. Each rootzone should be tested for its particle size distribution, pH, particle shape, organic matter content, saturated hydraulic conductivity, bulk density, total porosity, air-filled porosity and water-filled porosity. Again, the results are compared to the 2004 USGA Recommendations. The test results can be used to
drying
The use of RUBBER CRUMB on grass as top dressing has been granted a PATENT in the UK and Ireland under Number EP0788301B1
TEBBUTT ASSO.
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SEED SUPPLIERS SOIL SCREENERS
ULTRA T1500 - TROMMEL SCREEN HIRE AND SALES
Produce high quality topsoil from recycled soil/green waste
Contact Synergy Products on 01380 828337
Dave on mobile: 07971 843802 Email:
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SPARE PARTS
Sportsground Mixtures
• Next day delivery • Technical advice
Tel: 01522 868714 Fax: 01522 868095
seeds@bshlincoln.co.uk
Assuming that the bulk mix is satisfactory, the key to a successful construction is a sound quality control programme, during the rootzone blending phase. Changes to either the sand or the organic/inorganic amendment, or the proportions used in the rootzone, can influence the physical properties of the rootzone. The laboratory recommend checking the consistency of the particle size distribution and organic matter content at regular intervals. This enables the rootzone blender, if necessary, to make adjustments to the organic/inorganic amendment to maintain the desired physical properties. Every 1000 tonnes of production should be sampled and submitted to the laboratory for a full USGA suite of testing. Every load of material delivered
on site should be sampled. Each sample should be given a unique identification - the delivery date, delivery note number, and initials of the sampler. Retain each sample in a safe, dry storage place just in case there are any problems with the rootzone. If there are, at least, that specific delivery can be tested at the laboratory and problems readily detected. All too often, the laboratory is
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Standard & Special Seed Mixtures Contact: Simon Taylor Tel: 01522 868946 Mob: 07824 601471 Email:
simon.taylor@eurograss.com www.eurograss.com
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Cricket Renovation Seed Mixes CR1 & CR2 WASP coated seed also available 24 hour delivery
Hurrells Specialist Seeds, Beverley Road Cranswick Driffield East Yorkshire YO25 9PF Tel: 01377 271400 Fax: 01377 271500 Email:
nick@hmseeds.com
www.hmseeds.com SOIL ANALYSIS
GOALS MAKE GAMES. WE MAKEGOALS.
TALK TO MARK HARROD 01502 710039
www.markharrod.com
asked to check rootzone samples that have poor performance characteristics in an already constructed green. And, again, all too often, if the gravel/rootzone had been tested prior to the construction, it would have been deemed unsuitable for use. The cost of testing is a mere fraction of the cost of replacing a green. Why leave anything to chance, when there are independent and accredited laboratories which are there to provide reliable back-up and peace of mind?
GENUINE PARTS & TINES
A2LA Accredited & USGA Approved physical soil testing laboratory for the analysis of construction materials for the sportsturf industry
Contact ETL on 01786 449195 email:
europeanturf@aol.com www.etl-ltd.com
Deep Aeration - Pure & Simple
OLD & NEW MODELS Tel: 0845 026 0064
PARTS@JSMD.CO.UK 127
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