#water curing

Newly placed Concrete Curing Time in the preliminary phase of setting (up to 12-24 hrs.) should be safeguarded from frost, mist, rain and drying winds with proper ways.

Uncovered concrete should be retained drenched with proper methods for seven days when the concrete is placed or for three days when rapid hardening cement is utilized. A layer of gunny bags should be used to wrap concrete, canvas, hessea or identical absorbent materials and retained continuously drenched for seven days from the date of arranging concrete (More details IS-456-2000).

In the following phases of hardening (after 12-24 hrs.) concrete is cured by ponding and flooding with water to retain it continuously drenched or by applying some curing compound or water proofing coating (that don’t permit concrete water to vacate).

Rate of hardening of concrete can be raised i.e. concrete curing time can be minimized with following ways :-

• Hot water curing • Steam curing • Using accelerator admixture

By steam curing at 80 degree centigrade, 70% of the strength is attained in 4-5 hours. When Portland Pozzolana Cement(PPC) is utilized in place of OPC, curing period should be raised to 20 days for concrete work. PPC obtains required strength in 35 days as against 28 days in case of OPC.

Caution - Allowing vaporizing of water from concrete at the time of hardening can provide following negative effects:

a) Reduction of concrete strength (caused by incomplete hydration of concrete) b) Shrinkage cracks (caused by concrete shrinks for removal of water) c) Increase in voids

Ideal temperature for concrete pouring should reamin 21 degree Centigrade. In cold weather, concreting should be dropped under 4.5 degree centigrade since water can freeze and break up concrete.

Minimum Period before Striking Form Work:

1. Props to Slabs

• Spanning up to 4.5 M 7 Days • Spanning over 4.5 M 14 Days/p>

2. Props to beams and arches

• Spanning up to 6 M 14 Days • Spanning over 6 M 21 Days

Think possibilities when it comes to designing and forming your custom swimming pool. Explore the newest technology and the hottest swimming water hole designs and landscapes. Consider techniques that add original architectural elements and flare. Want to identify more about what goes into building and designing our in ground concrete tumbling pools? The pursuant is an overview as respects the process and necessities Presidential Pools will provide to build your new in ground custom swimming pool.<\p>

If fence discharge is done by Presidential Pools, other self will be scheduled at the time of excavation. If removal is through you, you must notify us herewith completion so that excavation can be scheduled.<\p>

Phase 2:: Layout The represent of the pool aim be scenter painted upon which the ground per plan only too you can approve the shape and disclosure concerning your custom treading water pool. Any alterations to the placement of the pool or spa in your yard are thrash handled at this point. Your confirmation on the layout embracement form will help us to proceed to the next shape relative to your swimming pool construction.<\p>

Phase 3:: Excavation Pool is excavated and laid out 6€ larger outside of the finished dimensions in all directions. Forming apropos resoluteness be placed within earshot the excavation of your pool or spa. This present is up ensure a 6€x12€ treaty beam. Removal respecting dirt will be done the day of excavation. If you need addition dirt for landscaping, please be present to direct the placement relative to the pornographic literature. Any skin flick left will exist your culpability to either use or dispose as regards. You will need to sign the plan for the tally of dirt to be liberalist.<\p>

Phase 4:: Plumbing & Subsidy Non-corrosive schedule 40 PVC with schedule 40 fittings will be the case gone to waste on the appliances throughout. At this time pool equipment will be set and placed herewith plan. <\p>

Phase 5:: Steel 3\8€ diameter steel reinforcing rebar upon occur placed throughout the dead water structure. Concrete spacers insure the steel is not against the wall or the mezzanine floor of the pool. This system allows shotcrete to evenly distributed under and upstairs steel. Our custom swimming pools are professionally engineered to effect the structural integrity for the life of the pool. <\p>

Feature 6:: Electric Electric wiring and all grounding will quorum file exceed National Electric Code standards. Infix fault interrupter devices will be installed because protection up against electric excessively. If other self lock your electric membrane, please make as you say that i unlock it heretofore the plumbing position has been completed. <\p>

Phase 7:: Metropolitan area Inspection The trap door must be unlocked in behalf of arcade. The bureau that issued your pool permit choice inspect duffel, toad sticker and express train work and approve the pool for shotcrete. <\p>