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JPS56142922A - Treatment of top of in-place concrete

JPS56142922A - Treatment of top of in-place concrete pile - Google Patents PURPOSE: To easily remove the top of a concrete pile by covering a hollow cylinder on the end portion of the iron bars at...

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JPS5927026A - On-site pile head treatment work - Google

purpose:to alleviate the cutting operation of an on-site pile head after curing by a method in which an on-site pile is formed in such a way as to cause the main iron bars of the pile to expose...

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JPS5758724A - In-situ prestressed concrete pile

prestressed concrete Prior art date 1980-09-27 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Pending Application number JP13493280A Other languages English (en) Other versions JPS6319650B2 (ja Inventor

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JP6106412B2 - Pile head treatment method for cast-in

Pile head treatment method for cast-in-place piles Download PDF Info ... Prior art keywords pile main concrete auxiliary plate cast Prior art date 2012-11-12 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

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JPH02243820A - Reinforced concrete road bearing pile

JPS56142922A (en) 1981-11-07: Treatment of top of in-place concrete pile JPS6397711A (en) 1988-04-28: Soil cement composite pile JPS56150222A (en) 1981-11-20: Construction of marine structure JPH0216209A (en) 1990-01-19: Construction of waterway in

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JPS5985023A - On-site pile driving work - Google Patents

PURPOSE:To break the head of a pile without causing noise by a method in which a treatment to prevent the adherence of concrete is applied to the upper end part of the main iron bars, an annular reinforcing band is provided on the periphery of the uppermost end of untreated part of the main iron bars, and then concrete is placed and hardened ...

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JPH02132224A - Method for forming concrete pile body

The steel bars T are remained in the percussion holl and concrete is poured therein from the lower end of a supply port 33 in a process for pulling up the interpiercing pile. Consequently, a concrete pile like body can be efficiently formed, and at the same time, a rock-bed at the circumference of the concrete pile like body can be firmly ...

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Concrete Piles what why when - Structural Guide

A reinforced concrete structural element having the cross-sectional shape circular or square or any other cost or placed below the ground for a deeper depth is called a pile. Types of Concrete Piles Mainly there are three types of concrete piles out of which prestressed piles are not commonly used in construction. Cast-in-situ bored piles

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Cast-In-Place Concrete Piles - UpCodes

Where concrete is placed through a funnel hopper at the top of the cast-in-place concrete pile, the concrete mix shall be designed and proportioned so as to produce a cohesive workable mix having a slump of not less than 4 inches (101.6 mm) and not more than 6 inches (152.4 mm).

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Cast-in-Place Concrete Piles - Concrete Construction

in a thick skin of concrete firmly keyed to the substra- t u m . The sections are usually cast in lengths of 1, 1 1/2, and 3 feet and diameters of 11 1/2, 14 1/2 and 23 1/2 inches for nominal pile sizes of 14, 18 and 26 inches (work i n g loads up to 40, 60 and 150 tons). Each section has a ribbed annular surface to promote a good bond with the

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Placement of Mass Concrete for Cast-in-Place Concrete Piling

center of cast-in-place concrete piling. Five concrete piles with varying diameters and made up of fourteen concrete mixes with different percentage of fly ash are used. The temperature profiles predicted using the finite element program, ABAQUS, are compared to the temperatures predicted by the step-by-step method, ACI 207 Schmidt model.

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Design, Construction and Behavior of Bored Cast In-situ

Inclusions in pile top and concrete level below trimming level Few cases were observed where tl1e concrete level was below the designed cut off level and/or inclusions in pile top portion. Mainly, this has been contributed by the high un-predicted slumping down of concrete upon extracting the temporary casing.

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CIP 10 - Strength of In-Place Concrete - Prairie

that in-place testing is required, such as for shore and form removal, other methods can be considered such as: cast-in-place, push-out cylinders and pullout strength measuring techniques covered by ASTM C 873 and C 900. References 1. In-Place Methods to Estimate Concrete Strength, ACI 228.1R, American Concrete Institute, Farmington Hills, MI. 2.

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Pile Head Treatment Method Statement Template. - Civil

Aug 20, 2020  Break out the repair area to remove all damaged concrete to a minimum depth of 15-20 mm, up to the pre-cut edge of the repair. Form-work is to be erected all around the pile cap, having a diameter 15 mm greater than that of the pile. The height of the form-work should be 20 mm above the pile head to place a 15-20 mm thick layer of grout

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Why and When to Use Concrete Piles? - FPrimeC Solutions Inc.

Jul 21, 2016  Cast-in-place concrete piles, or driven shafts are two great examples of how the can be produced (made) and installed. When choosing a pile type, one should generally consider the following conditions: 1- Poor quality of upper soil layers. 2 – When we have expansive soil in construction site. 3- To resist uplift forces.

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Cast-In-Place Concrete Piles - UpCodes

1812.1.1 Materials. Concrete or grout shall have a 28-day specified compressive strength ( f'c) of not less than 2,500 psi (17.24 MPa), except in micropiles and caisson piles where the minimum compressive strength shall be 4,000 psi (27.58 MPa). Where concrete is placed through a funnel hopper at the top of the cast-in-place concrete pile, the ...

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Cast-In-Place Concrete Pile Foundations - UpCodes

Where a structure is assigned to Seismic Design Category C in accordance with Section 1616, a minimum longitudinal reinforcement ratio of 0.0025 shall be provided for uncased cast-in-place concrete drilled or augered piles, piers or caissons in the top one-third of the pile length, a minimum length of 10 feet (3048 mm) below the ground or that required by analysis,

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Method Statement For Construction Of Concrete Piles.

Sep 12, 2020  For piles with cut-off levels which are substantially lower than the working platform level, concrete shall be casted up to 2.0 m above cut off level of pile. However, in-situ soil shall be used for back-filling borehole for remaining borehole depth from platform level until top of concrete level (2.0 m above COL).

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Concreting of Pile Foundations - Quality of Concrete for Piles

Fig: Concreting of pile foundation. The grade of concrete to be used for piling should be minimum M25 (or as as required at the site for load conditions) with the minimum cement content of 400 kg/m 3. Mixing is carried out in mechanical mixer only. In case of piles subsequently exposed to free water or in case of piles where concreting is done ...

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How to Pour Concrete for Pile Foundation? [PDF] - The

Remove any sections that come out of the pile borehole. Pull out the tremie pipe after the concrete reaches the top of the pile. After that, remove the temporary casing with necking and shearing of the poured concrete. Finally, fill the top part of the pile with concrete up to 15cm above cut-off levels, Fig. 6. Fig. 1: Tremie Tube Sections.

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How to Evaluate Concrete Piles? - FPrimeC Solutions Inc.

Feb 28, 2017  To select the best methodology for condition assessment of substructure, following factors should be considered: 1. Type and material of foundation (e.g. timber, reinforced concrete pile, steel pile, composite system) 2. Structural system of substructure (e.g. pile, foundation, or a combined system of foundation and pile) 3.

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Precast Pre-stressed Centrifugal concrete piles (PHC Piles)

Nov 06, 2020  PHC Piles (Spun Piles) have an extremely high tensile strength which avoid cracks occurring in the pile structure before and during installation (transportation and driving stages) and after installation (service loads and ground movement). Transportation of piles as well as the tensions created during pile driving is the main cause of tensile ...

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Concrete Strength for Bored cast in place piles and vibration ...

Jul 27, 2016  The other baffling thing is that we say that the skipping piles requirement is to protect the concrete from vibrations caused by drilling or casing of adjacent piles during the initial set, but we also require the contractor to use a mechanical vibrator directly in the concrete for the upper ~2-3m of concrete.

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Method Statement of Bored Piles - Construction of Piles

Jun 24, 2018  III. Materials a. Concrete Concrete for bored piles shall be composed in accordance to BS EN 1536 “Execution of Special Geotechnical Works – Bored Piles” in order to have: – a good ability to flow – the ability to pass reinforcement without segregation – a high resistance to wash out and segregation – a sufficient degree of self-compaction The final mix

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ITEM 551.11181011 CAST-IN-PLACE CONCRETE PILE 18 IN

ITEM 551.11181011 – CAST-IN-PLACE CONCRETE PILE – 18 IN DIAMETER PAGE 2 of 3 January 2017 6. At least 1 month prior to the start of any concrete placement, provide a copy of the proposed mixture design(s) and trial batch test results to the Director, Materials Bureau, submitted through the Regional Materials Engineer, for evaluation.

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Design, Construction and Behavior of Bored Cast In-situ

Inclusions in pile top and concrete level below trimming level Few cases were observed where tl1e concrete level was below the designed cut off level and/or inclusions in pile top portion. Mainly, this has been contributed by the high un-predicted slumping down of concrete upon extracting the temporary casing.

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GALVANIZED CLOSED ENDED CAST-IN-PLACE (CECIP)

Ë CECIP Pile, with cast-in-place concrete pile. Note: Cost of closure plate is included (Omit closure plate) 3 WITHOUT PILE POINT REINFORCEMENT CONCRETE PILE GALVANIZED CLOSED ENDED CAST-IN-PLACE (CECIP) T1 and T2 Plate Thickness Closure Plate Thickness Bent Number D1, CECIP Pile (O.D.) Min. Nominal Wall Thickness Vertical Bars L1, Length of ...

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Specification: Soldier Pile and Lagging Wall Design

Dec 02, 2020  Low-strength mortar (LSM), per CMS Item 613 is often poured on top of the structural concrete to finish filling the holes. The soil and LSM is then excavated down to the top of the structural concrete. ... held in place by the flanges of the beams. A final cast-in-place facing is applied to the front of the steel soldier pile beams, attached ...

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Pile Head Treatment Method Statement Template. - Civil

Aug 20, 2020  Break out the repair area to remove all damaged concrete to a minimum depth of 15-20 mm, up to the pre-cut edge of the repair. Form-work is to be erected all around the pile cap, having a diameter 15 mm greater than that of the pile. The height of the form-work should be 20 mm above the pile head to place a 15-20 mm thick layer of grout

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CIP 10 - Strength of In-Place Concrete - Prairie

that in-place testing is required, such as for shore and form removal, other methods can be considered such as: cast-in-place, push-out cylinders and pullout strength measuring techniques covered by ASTM C 873 and C 900. References 1. In-Place Methods to Estimate Concrete Strength, ACI 228.1R, American Concrete Institute, Farmington Hills, MI. 2.

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The Pros and Cons of Cast-in-Place Concrete Piles - Rhino Piling

Mar 19, 2020  Pro: Concrete cast-in-situ piles are maintenance free. Since cast-in-place concrete piles are installed on a construction site, there is no need for any further intervention from the piling team. After all, concrete is a durable material which means that the finished piles are said to be maintenance-free. As a result, the structure that is ...

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Cast-in-Place Concrete Piles Concrete Construction Magazine

Cast-in-Place Concrete Piles. Cast-in-place concrete piles eliminate the need for pile driving machinery which can cause dangerous vibrations and precipitate landslides and which is sometimes too costly for use on small jobs. The first method of cast-in-place piles is with steel cores. The method was developed by the Washington State Highway ...

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Cast-in-Place Concrete Piles - Concrete Construction

equipment. Inclined piles are also being formed with the system. Assembly through water, for such stru c t u r es as b r idge piers, is easily achieved by using concrete pipe sections as a permanent cofferd a m . View of some of the 62 cast-in-place piles taken after the exc a v ation had been completed but before the face wall was cast.

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Concrete Pile Splices - Pile Buck Magazine

Concrete Pile Splices. Pile Points. Splicing is called for when pile lengths required are too long for trucking or driving in one piece with the available equipment, or if there is a headroom restriction. A pile may have one or more splices. The splice should be capable of resisting stresses induced by driving, and service loads and conditions.

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PRESTRESSED CONCRETE PILES - PCI

the pile. (This condition had been adopted to a limited ex-tent for driving reinforced con-crete piles prior to the advent of prestressed concrete piles) . The reasons for the economy and other advantages of prestressed con-crete piles are as follows:— 1. Size of Pile and Equipment The length of pile required is a function of foundation ...

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Pile Cutting Trimming Method Statement

Method 1: Pile Cutting by Jack hammers. Jack Hammers shall be employed to cut the piles up to 70 mm above the pile cut off level. Breakers and power tools shall be employed to remove the rest of the concrete up the cut off level. Reinforcement Cutting Protection: The pile reinforcement shall be cut off leaving 1000 mm steel for lapping.

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IS 2911-1-1 (2010): DESIGN AND CONSTRUCTION OF PILE

Jan 01, 2010  PART 1 CONCRETE PILES Section 1 Driven Cast In-situ Concrete Piles ( Second Revision ) 1 SCOPE 1.1This standard (Part 1/Sec 1) covers the design and construction of driven cast in-situ concrete piles which transmit the load to the soil by resistance developed either at the pile tip by end-bearing or along the surface of the shaft by friction or ...

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Method Statement for Cast In Place Concrete ... - The Civil

Aug 20, 2021  The purpose of this Civil work method statement is to define the procedure for the preparation and construction of Cast in Place Concrete Works for substructures in accordance with the requirements specified in the relevant specifications, procedures and drawings, considering safety and quality of the work activities. Concrete Pouring Methodology.

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