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Please find some basic concepts on how to make a
pumpable mix-design for the UNI 30:
• the aggregates must have a good proportional
gradient on the granulometric curve: mixed sand
with a grain size of 0-6 mm;
• There must be a sufficient amount of binding agent
(about 350-400 kg/mc) and the proportions must be as
follows:
2/3 hydraulic lime,
1/3 slaked lime;
1/3 hydraulic lime,
2/3 slaked lime;
1/3 cement, 2/3 slaked lime;
2/3 cement, 1/3 slaked lime.
• Do not use plasticized (aerated) lime and, whatever
the case, not in a percentage greater than one -third of
the binding agent. Otherwise the machine’s output will
decline noticeably.
• The mix must have a plastic consistency (i.e. neither
too dry nor too wet).
6.2 - PUMPABLE MATERIALS
% Material left on the sieve
% Material gone throug the sieve
Summary of Contents for UNI 30 D
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