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US 8,257,487 B2Granted
Hydraulic binding agent
AssigneeConstuction Research & Technology GmbH
InventorsHorst-Michael Ludwig, Thomas Neumann
Life of this patent
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Abstract
The invention relates to a hydraulic binding agent comprising a binding agent component having free-flowing or solidifying properties when water is added and an acceleration component which is used to accelerate solidification. The acceleration component contains ultrafine calcium hydroxide having a high specific surface and low grain size.
Claims25
A hydraulic binder comprising:
- a binder component that flows and sets after adding water;
- and
- an accelerator component to accelerate the setting, wherein the accelerator component includes superfine calcium hydroxide with a specific surface of at least 15 m2/g and at a maximum of 100 m2 μg.
A ready-mix concrete or concrete part such as a road surface, a concrete pole or foundation, comprising a hydraulic binder including:
- a binder component capable of flowing and setting after an addition of water;
- and
- an accelerator component to accelerate the setting, wherein the accelerator component includes superfine calcium hydroxide with a specific surface of at least 15 m2/g and at a maximum 100 m2/g.
A method for making a building material capable of flowing and setting, comprising:
- providing, in a mixing device, raw materials including a hydraulic binder and a selected one or more of a base liquid and at least one additive, wherein the hydraulic binder includes:
- a binder component capable of flowing and setting after an addition of water;
- and
- an accelerator component to accelerate the setting, wherein the accelerator component includes superfine calcium hydroxide with a specific surface of at least 15 m2/g and at a maximum 100 m2/g;
- uniformly mixing in the mixing device to form a building material that flows and sets;
- forming the building material into a shape.
3 more elements
Dependencies are inferred from the claim text.