Recent content by Rony

  1. Rony

    What should be the amount of bentonite in the plastering mortar?

    Bentonite requires too much water to affect its strength, so I don't use bentonite. If you want to, add 2~5% is the best.
  2. Rony

    Please help me to see the state of the mortar on the wall.

    If it dries in two or three hours and you can rub it with your hands, then it means it not works; either you did not sprinkle water, or the water retention rate of the mortar itself is not reasonable since typically the mortar is still wet after two or three hours on the wall.
  3. Rony

    The bulk density of the mortar is 2054kg which is too high, and it falls a little after being put on the wall.

    The upper wall will definitely crack if the bulk density is too heavy. This is because the additives need to be appropriately adjusted. The additive manufacturer should compound the 0.5 additives. In addition to modifying the additives, you must also adjust the gradation. The quantity of...
  4. Rony

    What is the solution to the cracks in the plastering mortar of the exterior wall

    You are right. I have encountered it many times. For the first time, I thought it was due to product quality, and I lost much money. Later, I discovered that my product did not cause this problem, so I recommend leveling putty for the bottom layer. It is a thin layer of the anti-crack followed...
  5. Rony

    Plastering mortar foaming

    We have encountered this situation. There are air bubbles on plastered concrete walls, but there are no bubbles on block or brick walls. The main reason is that the concrete walls have many pores and are airtight. The gas has to discharge outside so that plum up the mortar. It can optimize from...
  6. Rony

    M5 mortar formula

    42.5 Cement 55kg Bluestone powder 189kg medium sand 751 red mud 5 Additives 175 grams
  7. Rony

    Regarding the dosage of cellulose ether for plastering mortar

    There is a bit more powder, and the amount of cellulose ether is also a little more. Simply relying on a cellulose ether is not very good for construction. You can add an appropriate amount of air-entraining agents and other materials to improve the construction.
  8. Rony

    Aerated block masonry mortar formula

    Is adding such a low MC to achieve a qualified water retention rate? I can’t see any advantages in such a formula.
  9. Rony

    Will foaming when applying mortar cause hollowing?

    You don’t need to add additives. You can observe at the site. It will not affect the construction in winter. Your sand configuration is okay, and the quality is controllable. Don’t worry too much about individual data.
  10. Rony

    Self-leveling cement formula, bleeding, sedimentation, could you please give me advice on the formula?

    Bleeding should first consider three aspects: 1. Too many admixtures are added; 2. Added too much water; 3. The cellulose ether was added too little. I saw that you wrote several formulas, but I needed to see data on fluidity. Is it because the bleeding was not measured? You must adjust the...
  11. Rony

    Please correct the tile adhesive formula if there is any concern (we have higher temperatures in the south and it doesn’t snow in winter)

    It's a relatively responsible company, and the price is certainly not low. This is a good formula, but it needs much tweaking. Adding 3 to 4 kilograms of calcium formate, an optional water-reducing agent and 0.3 to 0.4 kilograms of starch ether is recommended, depending on the mass. You'd...
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