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FINISHING WORKS- MASONRY.pptx
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- 2. What is Masonry? •Masonryconsists of building structures from single units that are laid and bound together with mortar. Brick, stone and concrete blocks are the most common materials used in masonry construction
- 3. Common types ofconcrete block CONCRETE HOLLOW BLOCK CONCRETE FORM BLOCK ano po mas mahal? May cost comparison po ba kayo?ano po mas mabilis gawin? Si maam jessa po meron daw details nito
- 4. •A hollow concreteblock is a block made of concrete that has hollow spaces between its walls. •Min Compressive Strength? •Dimensions -pag 4” ba eh 4” talaga? San ginagamit yung 5”, 6” •Types (ordinary, load bearing etc) •Laying type (stack type, split type) •Yan lang po ba shape nyan? CONCRETE HOLLOW BLOCK GENERAL CONCEPT
- 5. CONCRETE HOLLOW BLOCK METHODOLOGY Layout 1 Startmasonry works by rechecking layouts at every point from grid lines. Look for the markings. Pls indicate plastering consideration, thickness, etc
- 6. Provide Zocallo 2 For toiletand bathroom area. BAKEEEEEETTTTTT? Sa ibang site po wala chb lang agad CONCRETE HOLLOW BLOCK METHODOLOGY
- 7. 0.6m on center Vertical DSRBand Stiffener Column 3 Provide 12mm diameter vertical reinforcements at 0.6m on center. It is advisable to use stiffener column every 3 meters horizontal distance. How about lintel beam po? Kelan ako maglalagay? CONCRETE HOLLOW BLOCK METHODOLOGY
- 8. CHB Laying andHorizontal DSRB 4 Lay CHB with cell holes aligned at every three layers to fill every hole with mortar filler with a mixture of 1:2:4 ratio (1 cement, 2 bags of sand and 4 bags of “grabita”) Paano po yung dugtungan ng concrete column/beam at CHB? Bucker rod? Rebar? Sealant? CONCRETE HOLLOW BLOCK METHODOLOGY Provide 12mm diameter horizontal reinforcements at every 3rd layer of laid CHB.
- 9. Plastering 5 Use Hard plasteringguides, eg. Plywood, wood or metal for corners and openings during plastering. Butones? Total thickness of CHB wall plaster is 16mm with a tolerance of plus/minus 3mm. Minimum? Maximum? 100mm chb wall in plastered finish – 80mm po yung chb, kung 16mm kabilaan lalabas po 112mm na, pano po yun? CONCRETE HOLLOW BLOCK METHODOLOGY
- 10. CONCRETE HOLLOW BLOCK WRONGPRACTICES Damaged CHB 1
- 11. CONCRETE HOLLOW BLOCK WRONGPRACTICES Misaligned CHB Laying 2
- 12. •A concrete block whichact as a permanent form. form blocks are best for retaining wall, party wall (fencing), load and non-load bearing wall, partition wall, insulation wall, shear wall. •Pros and Cons • Types • Wts • Specs • Sizes • Tools and Equipment Educate me senpai CONCRETE FORM BLOCK GENERAL CONCEPT
- 13. CONCRETE FORM BLOCK METHODOLOGY CheckLayout and Elevation 1 Start masonry works by rechecking layouts and elevation at every point from grid lines. Also create a wall line for reference.
- 14. CONCRETE FORM BLOCK METHODOLOGY Mixa high slump concrete 2 Recommended ratio is 1:4:3 or 1:5:4 May gravel ba talaga Ano strength ng ratio na to, Ano reco na strength, sino mas matigas sila ng chb? Concrete po ba talaga? O mortar lang?
- 15. Vertical DSB andform block laying 3 Pour the highslump concrete atleast 3/4th height of the form block. Let it cure for 5- 10 minutes then make another layer. Always check alignment. Vertical bar space at every .6m CONCRETE HOLLOW BLOCK METHODOLOGY
- 16. Form block layingand horizontal DSB 4 Provide a horizontal bar every three layer. Let it cure for 30-45 minutes prior installation of the 4th layer. CONCRETE HOLLOW BLOCK METHODOLOGY
- 17. Concrete in fill 5 Usea steel rod to distribute the concrete in fill evenly. The Maximum laying is limited to 7 layers. Padiscuss po after, pano po yung mga dugtungan, ano po nilalagay Paint na po ba agad to? Skim coat muna? Plaster muna? Pano po termination sa kisame? CONCRETE HOLLOW BLOCK METHODOLOGY