Application of water reducing agent and defoamer in dry powder mortar


Release time:

2016-05-30

Author:

New Earth Group

Source:

Application of water reducing agent and defoamer in dry powder mortar

Application of water reducing agent and defoamer in dry powder mortar
1. water reducing agent, dosage 0.05-1%
Additives that can reduce the amount of mixing water under the condition of maintaining the consistency of mortar is basically the same.
1. Ordinary water reducing agent
2. Superplasticizer
3. Early strength water reducing agent
4. Retarding and water reducing agent
5. Air-entraining water-reducing agent
Retarding superplasticizer reduces water consumption/increases mortar/concrete compactness.
2. defoamer, dosage 0.02-0.5%
Help release air bubbles entrained and generated during mortar mixing and construction/improve compressive strength/improve surface condition
1. Polyols
2. Polysiloxane
1. Burst the bubble
2. Prevent foam regeneration
3. retarder, dosage 0.1-0.4%
Reduce the hydration speed and hydration heat of cement or gypsum, and extend the setting time
1. Deteriorated protein
2. Citrate
3. Tartrate
4. Potassium hydrogen phosphate
Prolonged setting time
4. accelerator
Admixtures that can quickly set and harden cement
For use in shotcrete and concrete

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