Practical Answers from Practical Action - updates

Pozzolanas - An Introduction

Fri, 10 Jul 2009 14:26:11 +0100

When mixed with lime, pozzolanas set and harden like a cement, making them an alternative to Portland cement.
Last Updated by Otto Ruskulis June 2009, 6 pages

Mud Plasters and Renders

Thu, 09 Jul 2009 12:42:28 +0100

Mud plasters are used for houses built from mud but can also be used for buildings of stone and fired brick.
Otto Ruskulis for the Appropriate Technology Magazine, last updated March 2009, 6 pages.

The Underground Brick Dome Tank, Sri Lanka - ..

Tue, 07 Jul 2009 16:44:40 +0100

This RWH system was developed by the CWSSP programme in Sri Lanka. The tank, a 5m³ underground brick built tank, is based loosely on the design of the Chinese below ground biogas tank.

Walls: Using Interlocking Stabilised Soil Blo..

Tue, 07 Jul 2009 15:50:21 +0100

This approach is a low cost alternative to hollow concrete blcoks and fired bricks.
Written for Practical Action South Asia, 9 pages.

Walls: Stabilised In-Situ Formed Walling

Tue, 07 Jul 2009 15:50:19 +0100

This Techncial Brief describes some of the practical considerations when building walls with stabilsed soil.
Practical Action South Asia, Feb 2007, 4 pages

Arches Technology

Tue, 07 Jul 2009 15:49:47 +0100

Practical Action South Asia provde some esign considerations when constructing arches.
Practical Action South Asia, 6 pages.

Appropriate Household Energy Technology Devel..

Tue, 07 Jul 2009 15:04:14 +0100

Although support materials exist in the form of technical information on various household energy technologies, there are few training materials to guide users.
Lydia Muchiri & May Sengendo, 1999, 43 pages

Manual Screw Press

Tue, 07 Jul 2009 14:23:36 +0100

Engineering drawings for the manual screw press, available as PDF or AutoCAD DWG files
Practical Action, January 2008, 12 pages

Semi-continuous tray dryer

Tue, 07 Jul 2009 14:19:12 +0100

Engineering drawings for the DRYIT semi-continuous tray dryer, available as PDF or AutoCAD DWG files
Practical Action, December 2007, 1 page