CLIN_-_004_RFI_00013_-_RampCurbAnchBolts.pdf

USAID/EHIP

New Health Center Construction Task Order 8, Combined RFI Log

Durame Site 202 Batu Site 251 Gimbichu Site 208 Arsi Negele Site 277 Waka Site 213 Meki Site 290

RFI No. Date Rec'd Item No. Question TT Response Response Date Follow-up

Revised RFI Gimbichu 00013

Meki 00008

7-Apr-14 1 The response to RFI 00013 says to construct the ramp curb as per the drawings. We request your approval to use the two following options:

Option 1: To grind out a 10cm by 10cm hole with a 15cm depth and to till the hole using Sikagrout together with the anchor bolts. Sikagrout is a cementitious grout with chemical additives. (Please refer to the attached sketch and product data of Sikagrout) .

Option 2: To use HSA type M12 Hilti Bolts by drilling four holes in the locations shown in the drawings.

(Please refer to the attached product data of the Hilti Bolts)

1. Prefer Option 1. The application should be done by professionals.

2. Confirm with Sikagrout supplier that the product is suitable for 10x10x15cm opening, as such applications are not mentioned in the manual.

3. Option 2 is suitable only for indoor, or dry conditions.

29-Apr-14

P:\01298\127-01298-11002\Construction\RFIs\TO#8 - Combined RFI's\RFI Log TO#8 COMBINED

International Relief &: Developmenl

TK International Building No.2 5th Floor Addis Ababa, TRANSMITT AL

No. 00025

PROJECT: TO-14-00003 (TO#8) Re Renovations DATE: Monday, April 07, 2014

TO: USAlDlET US Embassy Addis Ababa, ATTN: Roger Sydney

WE ARE SENDING:

0 Shop Drawings

0 Letter

0 Prints

0 Change Order

0 Plans

0 Samples

0 Specifications

IiI Other: Reauest for Infonnation

ITEM PACKAGE REV.

RFI

Remarks:

CC: IRD Document Control

P.O. Box 6005

REF: Request for Information

SUBMITTED FOR: ACTION TAKEN:

0 Approval 0 Approved as Submitted o YourUse 0 Approved as Noted o As Reauested 0 Retumed After Loan

I (fJ Review and Comment 0 Resubmit

(fJ Submit SENTVIA: 0 Retumed

Iii! Attached 0 Retumed for Corrections o Sellarate Cover Via: Mail 0 Due Date:

COPIES DATE DESCRIPTION

3/24/2014 Ramp Curb Anchor Holts

STATUS

OPN

Signed: -==:=:!~~~ ___ _ www.ird.org Tel.: +251-016-630023

International Relief & Deve10pment ImI'Tlmiw,g Lnlts. Building LiveHh""ds. REQUEST FOR INFORMATION

GIMBICHU No. 00013REV

MEKI No. 00008REV

TK International Building No.2 5th Floor Addis Ababa

TITLE: Ramp Curb Anchor Bolts

PROJECT: TO-14-00003 TO#8 HC Renovations

TO: USAIDIET

Addis Ababa

ATTN: Roger Sydney

QUESTION:

DATE: Monday, April 07, 2014

Contrad No.: TO#8

US Embassy

TO#8

The response to RFI 00013 says to construct the ramp curb as per the drawings. We request your approval to use the two following options:

Option 1: To grind out a 10cm by 10cm hole with a 15cm depth and to till the hole using Sikagrout together with the anchor bolts. Sikagrout is a cementitious grout with chemical additives. (Please refer to the attached sketch and product data of Sikagrout) .

Option 2: To use HSA type M12 Hilti Bolts by drilling four holes in the locations shown in the drawings.

(Please refer to the attached product data of the Hilti Bolts)

Note: IRD has not assessed the full impact of this issue in terms of additional eost and extension of time. IRD reserves the right to submit a elaim as provided in Contraet Seetion I.

Signed: __ =-iiioo,..l~;""'+'~ ____ _

P.O. BOl< 6005 www.ird.org Tel.: +251·0116·630023

Top View dia. 10 top J l--J::=- ---i portions to be drilled out

Curb rabar r--I.-rl;'.10 top

1 Ocmx1 Ocmx15cm to be drilled out rebar

Cross-section

CHS38X2

li I /1 00x100x6mm steel plata

--i-

V

I-

V

4 M12 Anchor bolts to ba east together with Sikagrout mortar

10cmx10cmx15cm drilled out to be fllled with Sikagrout mortar

Product Data Sheet Edition 11, 2006 Version no. 04.06

Sikagrout® -214 1/4

Co ns tru ct io n

Sikagrout® -214 High Performance Non Shrink Expanding Cementitious Grouting Mortar

Product Description

Sikagrout® -214 is a high performance, shrinkage compensating, ready to use grouting mortar. Consisting of :

A blend of cement & fillers, Properly graded quartz aggregates, And Special additives.

When mixed with water, the product forms a fluid grey coloured grout (similar to concrete colour).

Uses

Anchorage of bolts or iron bars in concrete.

Precision grouting for industrial equipments, subject to shocks and vibrations.

Grouting of railway rails or travelling crane tracks.

Grouting for turbines, alternators, compressors, generators, machine tools.

Beam keying or bridge springier support construction.

Assembly of metal reinforced concrete or prestressed concrete prefabricated elements.

Advantages Sikagrout® -214 is chloride free and contains no metal particles. Consequently, it does not oxidize when in contact with humidity. Instead it protects metal parts from corrosion owing to its high alkaline Ph.

It has a unique 2-stage shrinkage compensating system, with a very special blend of shrinkage and water reducing, plasticizing agents, offering the following beneficial properties:

High mechanical compressive and bending resistances.

Adheres to concrete, mortar and steel, ensuring a monolithic bond.

Can be pumped, injected, vibrated or compacted. It's not altered by large humidity or temp. variations.

Resistant to water and oil penetration.

High initial strength reduces down time requirement.

Approvals / Standards

U.S. Corps of Engineers: CRD C-621 expansion percent.

ASTM C-1107 for 2 stage expansion Grout Grades B+C.

British Standards for compression, bond and flexural.

Product Data Appearance / Colour

Grey Powder

Packaging 25 kg paper bags Storage Conditions / Shelf Life

12 months from date of production if stored properly in unopened and undamaged original well sealed packing, protect from damp and high humidity conditions.

Technical Data Base

Cement, selected fillers & aggregates and special additives

Density (at 20º C) approx. 2.2 kg/I (of the fresh mortar) Setting Time (at 20º C)

Initial Set Final Set

Plastic

1.40 hrs

3.10 hrs

Flowable

5.00 hrs

8.30 hrs

Sikagrout® -214 2/3 ns tru ct io n

Consistency Test Sample Age in days Plastic Fluid

550 - 600

Mechanical / Physical Properties Compressive Strength (kg/cm2)

Consistency Test Sample Age in days Plastic Fluid

33.5 110.5

Flexural Strength

Fluid Consistency Test Sample Age in hrs Tore steel Smooth Steel

Pull out Strength

Note: Sikagrout® -214 steel adherence values in plastic consistency are equal to or greater than the above values.

For large scale grouting projects, silica sand and gravel can be added to Sikagrout® -214, where the added aggregate must be clean and properly graded.

Example: 12.5 kg of sand graded 1-10 mm to one 25 kg bag of Sikgrout® -214 mixed with 3.5 – 4 lts. of water, yield a grout with the following approximate mechanical strengths:

Test Sample Age in days

Compressive Strength (kg/cm2)

Flexural Strength (kg/cm2)

Adding Fillers

Do not exceed 25 kg of sand per bag (Sikagrout® -214 : sand = 1:1 by weight)

Note: Expansion decreases when the proportion of sand added increase.

Application Details Ambient Temperature

Minimum application temperature: + 5 ºC.

Depending on the amount of mixing water used a fluid or plastic mortar will be obtained:

Consistency Ambient Temp.

degree C. Plastic (It/25kg) Fluid (It/25kg)

2.25 2.5 2.7

3.25 3.5

Mixing Ratio

The above proportions should be complied with to avoid bleeding.

Surface Preparation The substrate must be properly prepared and free of dust and grease. Remove any losses particles which could affect the final ultimate bond strength.

Moisten concrete or mortar substrate for 12 hrs. before applying Sikagrout® -214 (surface saturated dry condition). This is extremely important during hot weather applications.

Mixing Blend in a mechanical mixing device, preferably in a vertical-axis mixer or in a fully

– opening container, using a slow- rotating electric or pneumatic stirring drill (approx. 300 rpm).

Prepare the amount of water required to obtain the right consistency (refer to mixing ratio). Pour approx. 2/3 of the mix water into the mixer and gradually add Sikagrout® -214, this will help to avoid making lumps. Then pour in the rest of the water and let mix for a minimum of 3 minutes from the time the last water was added to the mix.

NOTE: Hand mixing does not ensure proper dispersion and is not recommended.

Sikagrout® -214 3/3 ns tru ct io n

Application Application Pour grout immediately after mixing. Ensure that air displaced by the mortar can easily escape; otherwise entrapped air will prevent full contact grouting. Wet porous substrates to saturated surface dry condition.

Pour grout immediately after mixing. Ensure that air displaced by the mortar can easily escape; otherwise entrapped air will prevent full contact grouting. Wet porous substrates to saturated surface dry condition.

When grouting base plates etc., ensure that a continuous and sufficient head oWhen grouting base plates etc., ensure that a continuous and sufficient head of pressure is maintained to keep the grout flowing.

To make optimum use of the products expansion properties, apply the grout as quickly as possible (within max. 15 minutes).

Cleaning of Tools Clean all tools and application equipment with water immediately after use.

Hardened/cured material can only be mechanically removed.

Curing After placing Sikagrout® -214 it should be moist cured for a minimum 12 hrs. after achieving initial set. Sika Antisol® -E Curing compound can also be used to ensure proper curing.

Safety Instructions Safety Precautions

Wear gloves and goggles.

In contact with eyes or skin product may cause skin irritation.

Ecology Residues of material must be removed according to local regulations.

Fully cured material can be disposed of as household waste under agreement with the responsible local authorities.

Toxicity Non-Toxic under relevant health and safety codes.

Transport Non-hazardous

Legal notes

The information, and in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika’s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product’s suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.

Sika Egypt for Construction Chemicals

El Abour City 1st industrial zone (A) Section # 10 Block 13035, Egypt

Tel :+202- 6100714/15/16/17/18 Fax :+202- 6100759 Mob :+2012- 3908822/55 www.sika.com.eg

Anchor Systems www.hilti.com

A n c h o r

S ys te m s Ordering designation Anchor size Anchor length Base plate clearance hole Required tightening torque Socket size Wrench size Thread length Sales pack quantity Item number

HSA M6 5/-/- M6 50 mm 7 mm 5 Nm 10 mm 10 mm 15 mm 200 pc 2036084 HSA M6 20/10/- M6 65 mm 7 mm 5 Nm 10 mm 10 mm 30 mm 200 pc 2036085 HSA M6 40/30/10 M6 85 mm 7 mm 5 Nm 10 mm 10 mm 50 mm 100 pc 2036086 HSA M6 55/45/25 M6 100 mm 7 mm 5 Nm 10 mm 10 mm 65 mm 100 pc 2036087 HSA M8 5/-/- M8 55 mm 9 mm 15 Nm 13 mm 13 mm 14 mm 100 pc 2004122 HSA M8 20/10/- M8 70 mm 9 mm 15 Nm 13 mm 13 mm 29 mm 100 pc 2004123 HSA M8 35/25/- M8 85 mm 9 mm 15 Nm 13 mm 13 mm 44 mm 80 pc 2004124 HSA M8 55/45/15 M8 105 mm 9 mm 15 Nm 13 mm 13 mm 64 mm 50 pc 2004125 HSA M8 80/70/40 M8 130 mm 9 mm 15 Nm 13 mm 13 mm 89 mm 50 pc 2004126 HSA M10 5/-/- M10 68 mm 12 mm 25 Nm 17 mm 17 mm 16 mm 50 pc 2004127 HSA M10 20/10/- M10 83 mm 12 mm 25 Nm 17 mm 17 mm 31 mm 50 pc 2004128 HSA M10 35/25/- M10 98 mm 12 mm 25 Nm 17 mm 17 mm 46 mm 40 pc 2004129 HSA M10 50/40/10 M10 113 mm 12 mm 25 Nm 17 mm 17 mm 61 mm 40 pc 2004150 HSA M10 70/60/30 M10 133 mm 12 mm 25 Nm 17 mm 17 mm 81 mm 25 pc 2004151 HSA M10 90/80/50 M10 153 mm 12 mm 25 Nm 17 mm 17 mm 101 mm 25 pc 2004152 HSA M10 105/95/65 M10 168 mm 12 mm 25 Nm 17 mm 17 mm 116 mm 25 pc 2004153 HSA M12 5/ -/- M12 85 mm 14 mm 50 Nm 19 mm 19 mm 18 mm 25 pc 2004154 HSA M12 20/5/- M12 100 mm 14 mm 50 Nm 19 mm 19 mm 33 mm 25 pc 2004155 HSA M12 35/20/- M12 115 mm 14 mm 50 Nm 19 mm 19 mm 48 mm 25 pc 2004156 HSA M12 65/50/15 M12 145 mm 14 mm 50 Nm 19 mm 19 mm 78 mm 25 pc 2004157 HSA M12 95/80/45 M12 175 mm 14 mm 50 Nm 19 mm 19 mm 108 mm 25 pc 2004158

Standard stud anchor HSA

Technical data Head configuration Externally threaded

Environmental conditions Indoor, dry conditions

Type of fastening Pre-fastening,Through-fastening

Material composition Steel, zinc-plated (min. 5 µm)

Installation direction All

Tested/approved for diamond drilling

Yes

HSA

Applications

■ Fastening facade brackets

■ Fastening columns and beams

■ Fastening brackets and channels

Base materials ◾ Concrete (uncracked)

Advantages

■ High loads due to concrete cone failure

■ 3 embedment depths for maximum flexibility

■ Excellent edge and spacing distances

■ Suitable for pre- and through-fastening

Approvals ETA ETA-11/0374 for HSA_en (ETAG 001-2, Option 7) Approvals and test reports may apply to selected products only. Please refer to the documents for details.