{"product_id":"mackintosh-probe-kit-bs1377","title":"Mackintosh Probe Kit | BS1377 Soil Bearing Capacity Testing","description":"\u003cp\u003eThe Mackintosh Probe is a lightweight, portable in-situ testing system designed to measure soil bearing capacity at depth — quickly, accurately, and without heavy plant or equipment. Operating to \u003cstrong\u003eBS1377\u003c\/strong\u003e, the Mackintosh Probe is the most widely used dynamic penetration test for determining the N-value (blows per 300mm) of different soil layers to depths of up to \u003cstrong\u003e18 metres\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThe test is particularly effective in soft, loose, or variable soils including peat, fill, and alluvial deposits, where conventional investigation methods can be difficult or costly. Results are expressed as the number of hammer blows required to drive the cone 300mm, providing a direct indication of relative soil density and bearing capacity at each depth interval.\u003c\/p\u003e\n\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003cp\u003eA 25mm diameter, 60° hardened steel cone is attached to the bottom of a series of 15mm diameter steel rods (each 1.20m long). The rods are driven into the ground by dropping a \u003cstrong\u003e4.5kg hammer\u003c\/strong\u003e freely through a height of \u003cstrong\u003e300mm\u003c\/strong\u003e onto an anvil. The number of blows required to achieve each 300mm of penetration is recorded, building a continuous soil profile from surface to the required investigation depth.\u003c\/p\u003e\n\n\u003ch2\u003eKit Contents\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePenetration rods (1,200mm \/ 47¼\" each) — 13 nos\u003c\/li\u003e\n\u003cli\u003eCouplings — 13 nos\u003c\/li\u003e\n\u003cli\u003ePipe wrenches — 2 nos\u003c\/li\u003e\n\u003cli\u003ePenetration cone (25mm, 60°) — 2 nos\u003c\/li\u003e\n\u003cli\u003eHammer nuts — 2 nos\u003c\/li\u003e\n\u003cli\u003eHammer (4.5kg) — 1 no\u003c\/li\u003e\n\u003cli\u003eLifting handle — 1 no\u003c\/li\u003e\n\u003cli\u003eHeavy duty carrying case — 1 no\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard:\u003c\/strong\u003e BS1377\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e MPA-1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod diameter:\u003c\/strong\u003e 15mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRod length:\u003c\/strong\u003e 1,200mm (47¼\") per section\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCone diameter:\u003c\/strong\u003e 25mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCone angle:\u003c\/strong\u003e 60°\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHammer mass:\u003c\/strong\u003e 4.5kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHammer drop height:\u003c\/strong\u003e 300mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum investigation depth:\u003c\/strong\u003e 18 metres (with standard 13-rod kit)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSoil bearing capacity assessment for shallow foundations\u003c\/li\u003e\n\u003cli\u003eInvestigation of soft ground and peat deposits\u003c\/li\u003e\n\u003cli\u003eFill and embankment investigation\u003c\/li\u003e\n\u003cli\u003eRapid site characterisation prior to detailed investigation\u003c\/li\u003e\n\u003cli\u003eComparison of soil conditions across a site\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe Mackintosh Probe kit is supplied in a heavy duty carrying case for ease of transport to site. All components are manufactured to BS1377 requirements.\u003c\/p\u003e\n\n\u003cp\u003eFor further information or to discuss your site investigation requirements, contact us at \u003ca href=\"mailto:hello@geositesupply.com\"\u003ehello@geositesupply.com\u003c\/a\u003e.\u003c\/p\u003e","brand":"Geo Site Supply","offers":[{"title":"Default Title","offer_id":54473588441430,"sku":null,"price":1499.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0945\/3056\/8534\/files\/Mackintosh.jpg?v=1784297845","url":"https:\/\/www.geositesupply.com\/products\/mackintosh-probe-kit-bs1377","provider":"Geo Site Supply ","version":"1.0","type":"link"}