USED TECHNOLOGIES ARE :- PQC,DLC,PCC

1. USED TECHNOLOGIES ARE :-
 PQC
 DLC
 PCC
 PAVEMENT QUALITY CONCRETE (PQC)
PURPOSE:-
 The purpose of this Quality Plan for Construction ofPavement
Quality Concrete (PQC)is to provide detailed Construction
Methodology, Materials used, Resources deployed.
SCOPE:-
 The Scope of this Segmental Quality Plan/ Methodologyshall covers
the construction of pavement quality concrete insertion of dowel bars,
tie bars in accordance with the requirement of Technical
Specifications and in conformity with the line, grades and cross
sections shown in drawings.
It covers the following activities:
Selection, Testing and Acceptance of all incorporated Materials for
PQC.
Designof Mixes for PQC and Trials, Acceptance etc.
Details of Plant, Equipment / Machinery as required in execution of
PQC.
Batching, Mixing, Transporting, Placing, Finishing and Curing of
Concrete for PQC.
Mechanized Texturing and Curing operation for PQC.
Joint Cutting and application of Joint Sealing compound as approved.
Quality Assurance and Control Checks during operation and post
concreting

2. DEFINITIONS:-
The words like contract, Contractors, Engineer (Synonymous to
Engineer's representative), Drawing, Employer, Government, Works,
Worksite used in this Quality Plan shall be consideredto have the
meaning as understood from the definitions pertaining Quality
Management System Developedforthe Particular Project.
The following abbreviation shall have the meaning as set forth below:
MORT & H: Ministry of Roads Transport & Highways
NHAI: National Highways Authority of India
BIS:Bureau of Indian standards
QA: Quality Assurance
PQC: Pavement Quality Concrete
MTC: Manufacture's TestCertificate
ITP: InspectionTestPlan
CROSS REFERENCE:-
This Segment Quality Plan should be read in conjunction with the
following documents:
ISO 9001 2000 Quality management system
Contractor Document / Technical Specifications
MoRTH/IS/ASTM/ACI Codes,where applicable
IRC: SP: 57-2000,Guideline on Quality system for roads.
Surveyand Setting out for PQC:
Material Required:
Cement:
Any of the following types of cementmay be used with prior approval
of the Engineer:

3. (i) Ordinary Portland Cement IS: 269
(ii) Portland Slag Cement IS: 455
(iii) Portland Pozzolana Cement IS:1489
Cement to be used may preferably be obtained in bulk form.It shall be
stored in accordance with stipulations contained in Clause 1014 and shall
be subjected to acceptance test prior to its immediate use.
.
Coarse Aggregate:
Aggregates to be used in the construction of PQC will be Crushed
aggregates .
The aggregate complying IS: 383 will be used.
Max Size of coarse aggregate 25mm as per MoRTH 601.2.3.2
(Fourth Revision : August 2001).
Fine Aggregate:
Clean, natural sand from River Banas form location Triveni 20km form
Ladpura will be used. The material conforming IS:383 is ensured.
The fine aggregate shall consist of clean, natural sand or crushed
stone sand or a combination of the two and shall conform to IS: 383.
Fine aggregate shall be free from soft particles, clay, shale, loam,
cemented particles, mica, organic and other foreign matter. The fine
aggregate shall complywith MoRTH 602.2.4.3.(Fourth Revision:
August 2001).

4. Water:
Water used for mixing and curing concrete conforming to IS:
456:2000.
In case of PQC During hot weather, water for preparation of
concrete will be taken form water chilling plant.
Admixtures:
Admixture conforming to IS: 6925 and IS: 9103 to improve
workability of concrete or extension of setting time to be done.
Storage of materials :
Aggregates:
Aggregate will be stock piled separately and sufficient distance will
be maintained from each fraction to avoid intermingling.
Storage space must be easy to inspection, removal and restorage
of materials.
Regular testing of aggregate stock pile will be exercised to ensure
required gradation control.
Cement
Bulk cementwill be stored in bulk storage containers having
200MT capacity and the number of such bulkers will be sufficient
to cater to the requirement at site.
Water
Water will be tanks covered at top and cleaned at regular intervals.
The intake of pipe will be enclosed to exclude silt and other solid

5. materials and there shall be a minimum depth of 0.60 m of water
below the intake at all times.
Proportioningof concrete
Concrete Strength
The pavement concrete should be a class M-40 concrete with a
minimum 28 days compressive characteristic strength of 40 MPa
1. Characteristic flexural strength at 28 days = 4.5 MPa
2. Target mean strength at 28 days = 5.80MPa
3. Water cement ratio =0.45 Maximum
4. Slump as per IS: 1199 =31+/-15 mm
Minimum flexural characteristic strength of 4.5 MPa.
The ration between the 7 & 28 days strengths of 4.5 Mpa.
For each batch
7days (avg.)
The average flexural strengths ( R7) =
28 days (avg.)
R7 to be determined forthree decimal levels.
(Flexural strength of any Six consecutive 7day test result) >4.50+1.65*s
S: Standard deviation of the group.
Workability:
The control of workability will be done by the slump test
Slump will be controlled so that mix is compactedand finished
without undue flow.
The exact slump required at plant and site will be exercised during
trail patch.

6. Separation Membrane:
Two applications of approved wax-based white �pigmented curing
compound will be applied on DLC.
First coat will be applied immediately after DLC laying and
compactionand the other before start of PQC.
The process of application will be done using mechanical sprayer.
The other parameters will be meeting the additional specification
Clause- A-12.
Preparation of base :
Any visible defects / cracks more than 10mm size to be required by
fine cement concrete mix.
Surface will be made clean of dirt or extraneous material and free
from damage before application compound.
Joints:
The exact location and type of joint to be transferred at site as
mentioned in drawing.
Concrete Penetrometer and testing as per ASTM C 403 will be
used in monitoring setting of concrete / Maturity of concrete and
saw cutting period.
Initial saw cut of 3mm wide , 100mm depthin transverse and
longitudinal directionwill be provided after initial set(approximately
6~8hrs).
Final saw cutting 10~12mm wide ,20~25mm depthwill de provided
after 14days of curing at accommodate joint sealant.
The staggering of transverse joints with reference to the base will
be minimum 0.3m.