“Building made easy” - Buy interlocking concrete blocks moulds to manufacture your own blocks to construct a dwelling. Stumbelbloc is also significantly more environmentally friendly than most other forms of traditional building materials.
Stumbelbloc's revolutionary new product (Patent registered) empowers the everyman to build without specialist skills! House, walls, sheds, soakaways, ponds, and much more can be built with unskilled labour ten times faster than conventional methods. Using its original design, building is as simple as stacking blocks on top of each other whilst retaining high precision margins!
Using Stumbelbloc's unique mould set up, hollow core blocks can be created on site within 48 hours with basic manual labour and without external power! This minimizes transportation costs, production costs, and carbon footprint.
Moreover, local communities can become empowered by creating a local economy based around the manufacturing and construction using such blocks.
PRODUCT OVERVIEW
Stumbelbloc was invented to give anyone with limited skills and limited means the opportunity to build their own home in a cost effective way.
The interlocking building blocks are made with the unique and innovative Stumbelbloc plastic moulds, which are filled with a concrete mix and left to dry. When removed from the mould, a very accurate hollow core block is created. The unique interlocking shape allows building with great ease and, in conjunction with the glue i.e. thin bed mortar and render (NHBRC approved building method), a very strong, fast and cheap construction method is created.
The material cost for making a standard block is between R 6, 00 and R 8, 00. A significant consideration is the saving on the cost of transport of normal blocks at R 3, 00 per 100 km. The additional labour cost varies from area to area. Stumbelbloc can be manufactured on site thereby saving money and creating work on site.
SABS block strength requirement is 3, 5 MPa per block. The standard block has been tested around 4, 8 MPa. Materials can be varied in accordance with local requirements and the strength required.
An average unskilled labourer can make up to 64 blocks a day using the traditional hand mixing method. With some basic tools and power a small production unit employing four labourers per day can manufacture up to 250 blocks per day.
Stumbelbloc creates employment for a single person and selling his own blocks for a cost of R 14 454,72 per person for the moulds. This is based on 68 moulds with one person making 34 blocks per day by hand. In South Africa, the material cost is between R 6, 00 to R 8, 00 per block which could then be sold in rural areas at R 14, 00 or, in urban areas for R 18, 00 per block plus transport cost.
This innovative building system requires no lintels instead the blocks are placed, filled with concrete and rebar creating a Stumbelbloc lintel. A structure can be built to roof height in one day and can take full load bearing immediately.
