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Boxcrete is a pre-bagged material that is used in the grouting of steel buntons and other steel members in shafts.


  • Boxcrete exhibits rapid strength gain allowing for fast track erection, if correct water/cement ratio is used.
  • Shrinkage compensating characteristics prevent relaxation of support during setting and curing.
  • Boxcrete can be used as a quick setting brattice wall repair material.
  • Boxcrete has self-levelling characteristics allowing it to be used as a non-shrink machine base grout.


Composition Description
OPC / RHC / High Alumina CEM 1 42,5 / CEM 1 52,5
Optional Admixtures Plasticisers, accelerators and Shrinkage compensators
Fine Aggregate Crusher / River / Filler Sands ≤ 5% moisture content
Coarse Aggregates Crushed stone


Standards Compliance
Boxcrete materials comply with the requirements of SABS ENV 197-1, 1083, 1200G and BS 915 Part 2: 1972.


Range of Products

Product Bag size Water Addition Yield Bags/m3 mix
Bunton Grout 25 kg ± 2,0 l/bag ± 86bags



Product Slump Compressive Strengths
Bunton Grout ± 60 mm 40 MPa min. @ 28 days



Outer bag Inner bag
Virgin, woven, pre-printed, polypropylene bag, with stitched polyester seams. Colour coded for easy identification of product. Virgin, low density, polyethylene bag with heat-sealed sides and bottom seams.


Materials should normally be stored under cover. Reduced shelf life may occur if packaging is exposed to the elements. Packaging materials may deteriorate, allowing moisture ingress into the cementitious binder. This could lead to premature hardening.


Shelf Life
Boxcrete products will store for up to 6 months in dry conditions.



General The use of eye protection, gloves and dust masks is recommended. Follow the typical precautions as prescribed for handling Portland cement.
Inhalation Constant exposure over long periods of time to very high concentrations may cause a cough with phlegm.
Skin contact Prolonged exposure could sensitize skin causing mild irritation. In extreme cases, dermatitis could occur.
Eyes Use eye protection. However, if eyes become affected, irrigate eyes with copious amounts of clean water. Seek medical attention.
Ingestion Ingestion of harmful quantities is unlikely to occur. If ingested, drink copious amounts of drinking water and consult a medical practitioner. DO NOT INDUCE VOMITING.


Technical Support, Servicing and Testing
Technicrete provides full support and back-up on both the technical and practical aspects of our products. We provide on-site assistance and underground training. All product performance is continuously monitored by means of regular testing at accredited laboratories.


Important Note
Technicrete products are guaranteed against defective materials and manufacture and are sold subject to its standard terms and conditions of sale. Whilst Technicrete endeavours to ensure that any advice, recommendation, specification or information it may give is accurate and correct, it cannot, because it has no direct or continuous control over where and how its products are applied, accept any liability either directly or indirectly arising from the use of its products, whether or not in accordance with any advice, specification, recommendation or information given by it.