RCC HUME PIPES

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RCC Hume pipes are made of a mixture of Portland cement, sand and aggregate in the proportion of 1:2:5:2.5 with steel rods and wires as reinforcement material. These pipes are manufactured in diameters ranging from 300 mm to 2200 mm or more. The RCC pipes are suitable for irrigation, culvert construction, sewerage and drainage purposes. Transportation of water, sewerage, effluents or other liquid slurries in these pipes is quite smooth. Seepage or leakage is totally avoided by proper jointing & sealing of two consecutive pieces of the pipe line. Hume pipes have reasonably good load-bearing capacity and hence, can be laid either underground or over the ground. Carefully made pipes, tested as per IS: 458-1971 is available in a wide range of sizes for use.

Well constructed steel wire/rod cage is concentrically placed inside the pipe mould where premixed concrete is charged for pipe casting. The rotating moulds receive the feed material through open ends at both ends.

RCC Hume pipes are used for sewer, road, highway, culvert, irrigation and water supply. Hume Pipe or Spun Pipes are available in 3 classes, normally NP2 and NP3 are manufactured using the HUME pipe manufacturing machines. But heavy duty pipes NP4 are produced using vertical manufacturing process, which is most advanced and computerized system.

Hume pipes manufacturing in India entirely depends on the construction market, which has been booming for last two decades due to enormous growth in construction, infrastructure and power sector in India.

RCC or Pre cast Pipe is the major civil engineering achievement. The HUME Pipe process for manufacturing the Reinforcement cement is a conventional system, where concrete is being poured manually after preparing the Reinforcement cage.

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Description

INTRODUCTION
USES AND APPLICATION
HUME PIPE SPECIFICATION AND LAYING GUIDELINES
CLASS
DENSITY
LENGTH
DIAMETER OF RCC HUME PIPE
JOINTS
DESIGN
HUME PIPE SELECTION AND LAYING GUIDELINES
RCC HUME PIPES
B.I.S. SPECIFICATION
TECHNICAL SPECIFICATION OF PRE CAST CONCRETE PIPE
SCOPE
NOIES
2 REFERENCES
3 TERMONOLOGY
CLASSIFICATION
5 MATERIALS
5.2 CEMENT
NOTES
5.3 AGGREGATES
5.4 REINFORCEMENT
5.5 CONCRETE OR MORTAR
5.6 RUBBER RING
5.7 WATER
5.8 CHEMICAL ADMIXTURES
6.1 GENERAL
6.1.2.1 LONGITUDINAL REINFORCEMENT
6.2 REINFORCEMENT
6.3 ENDS OF PIPES
NUTS
6.4 COVER
7 MANUFACTURES
7.1 GENERAL
7.2 CONCRETE MIXING AND PLACING
7.3 REINFORCEMENT CAGES
8 DIMENSIONS
8.1 PIPES
DIFFERENT TYPES OF HUME PIPES
REINFORCED CONCRETE CULVERT AND DRAINAGE PIPES:
TESTING:
1 HP REINFORCED CONCRETE CULVERT
REINFORCED CONCRETE CULVERT AND DRAINAGE PIPES
REINFORCED CONCRETE PRESSURE PIPES
GENERAL
SPECIFICATIONS
NOMINAL EFFECTIVE LENGTHS:
RAW MATERIALS & THEIR TREATMENT
AGGREGATES
1. COARSE AGGREGATES
MANUFACTURED SAND
LIGHTWEIGHT AGGREGATES
ADMIXTURES
WATER REDUCERS
OPPORTUNITIES IN CONCRETE PIPE MANUFACTURE
CONCRETE PIPE MARKET BY APPLICATION:
CONCRETE PIPE MARKET BY PRODUCT:
CONCRETE PIPE MARKET BY DIAMETER:
CONCRETE PIPE MARKET BY PRESSURE RATING:
CONSTRUCTION SCENARIO IN NEPAL
CHALLENGES AND PROSPECTS OF CONSTRUCTION INDUSTRY IN NEPAL
CHALLENGES AND PROBLEMS
IMPACT OF COVID -19 ON CONSTRUCTION INDUSTRY IN NEPAL
MANUFACTURING PROCESS OF RCC HUME PIPES
CONCRETE PIPE AND ITS MANUFACTURE
PRESTENSIONING CONCRETE
2. CASTING BEDS
FORMING
GRADES OF CONCRETE:-
COMPRESSIVE STRENGTH MAINLY GOVERNS THE MIX DESIGN.
UPTO M15 GRADES ARE LOW STRENGTH CONCRETE
PROPERTIES
PIPES OF LENGTHS 3 M & 4 M HAVE THE REINFORCEMENT AS BELOW:-
A) LONGITUDINAL REINFORCEMENT:-
B) CIRCUMFERENTIAL REINFORCEMENT:
THE PITCH OF CIR. REINFORCEMENT SHOULD NOT BE MORE THAN:-
ENDS OF PIPES
TABLE 1 DESIGN AND STRENGTH TEST REQUIREMENTS OF CONCRETE
PIPES OF CLASS NPI UNREINFORCED NON-PRESSURE PIPES
TABLE 2 DESIGN AND STRENGTH TEST REQUIREMENTS OF CONCRETE
PIPES OF CLASS NP2 REINFORCED CONCRETE, LIGHT-DUTY, NON-PRESSURE PIPES
TABLES SPIGOT AND SOCKET DIMENSIONS OF NPI CLASS PIPES
ALL DIMENSIONS IN MILLIMETERS
VERY HIGH STRENGTH CONCRETE
PROPERTIES
CONCLUSIONS
DIFFERENT TYPES OF CEMENT
ORDINARY PORTLAND CEMENT (OPC)
PORTLAND POZZOLANA CEMENT (PPC)
PORTLAND SLAG CEMENT (PSC)
HIGH-STRENGTH ORDINARY PORTLAND CEMENT (HSOPC)
SULPHATE RESISTING CEMENT (SRC)
RAPID-HARDENING PORTLAND CEMENT (RHPC)
LOW-HEAT PORTLAND CEMENT (LHPC)
WHITE PORTLAND CEMENT (WPC)
HYDROPHOBIC PORTLAND CEMENT (HPC)
OIL WELL CEMENT (OWC)
REGULATED SET CEMENT (RSC)
EXPANSIVE CEMENT (EC)
SUPERSULPHATE CEMENT (SSC)
MASONRY CEMENT (MC)
HIGH ALUMINA CEMENT (HAC)
ADMIXTURES FOR CONCRETE – AN OVERVIEW
CLASSIFICATION
COMPOSITION AND USAGE
TABLE 1 TYPE, MODE OF ACTION, AND USE OF ADMIXTURES
SOME DOS AND DON’TS
SELECTION OF A WATER REDUCING ADMIXTURE
CONCLUSION
TABLE 2 PHYSICAL REQUIREMENTS OF ADMIXTURES
H2O THE FOURTH INGREDIENT OF CONCRETE
TESTS FOR QUALITY OF WATER
THEY ENTAIL:
EFFECTS OF IMPURITIES IN MIXING WATER ON CONCRETE
SEA WATER
ACIDIC WATERS
ALKALINE WATERS
INDUSTRIAL WASTE WATERS
WATERS CARRYING SANITARY SEWAGE
SUGAR
OILS
ALGAE
PROCESSING DETAILS RCC HUME PIPE
CONCRETE MIXING, FEEDING & CURING
WORKING PRINCIPLE OF HUME PIPE MANUFACTURING
RAW MATERIAL:
ASSEMBLING OF MOULDS:
MIXING OF CONCRETE:
THE SPINNING OF MOULD:
DEMOULDING:
CURING:
TEST & DISPATCH:
INSTALLATION OF RCC HUME PIPES
INSTALLATION OF PIPES
TRENCH PREPARATION
THE FOUNDATION
BEDDING MATERIALS
CONCRETE CRADLE BEDDING:
(REINFORCED OR PLAIN CONCRETE)
FIRST CLASS BEDDING:
(GRANULAR MATERIAL)
ORDINARY BEDDING:
(NATURAL SOIL OF TRENCH)
BEDDING PROCEDURE
PROJECT IMPLEMENTATION SCHEDULES
INTRODUCTION
PROJECT HANDLING
PROJECT SCHEDULING
PROJECT CONSTRUCTION SCHEDULE
TIME SCHEDULE
PROCESS FLOW DIAGRAM
COMPLETE PLANT AND MACHINERY SUPPLIERS FOR RCC HUME PIPES
SUPPLIERS OF PLANTS & MACHINERY
SUPPLIERS OF HUME PIPE MAKING MACHINERY
SUPPLIERS OF CONCRETE MIXER
SUPPLIERS OF WATER TANKS
SUPPLIERS OF LATHE MACHINES
SUPPLIERS OF DRILLING MACHINE
SUPPLIERS OF GRINDERS
SUPPLIERS OF MILLING MACHINE
SUPPLIERS OF RAW MATERIALS
CEMENT MANUFACTURERS
SUPPLIERS OF RIVER SAND
SUPPLIERS OF M.S. WIRE

APPENDIX – A:

01. PLANT ECONOMICS
02. LAND & BUILDING
03. PLANT AND MACHINERY
04. OTHER FIXED ASSESTS
05. FIXED CAPITAL
06. RAW MATERIAL
07. SALARY AND WAGES
08. UTILITIES AND OVERHEADS
09. TOTAL WORKING CAPITAL
10. TOTAL CAPITAL INVESTMENT
11. COST OF PRODUCTION
12. TURN OVER/ANNUM
13. BREAK EVEN POINT
14. RESOURCES FOR FINANCE
15. INSTALMENT PAYABLE IN 5 YEARS
16. DEPRECIATION CHART FOR 5 YEARS
17. PROFIT ANALYSIS FOR 5 YEARS
18. PROJECTED BALANCE SHEET FOR (5 YEARS)

Additional information

Plant Capacity

100 Mtrs./Day
Land & Building

(4000 sq.mt.)
Plant & Machinery

US$ 58571
Rate of Return

41%
Break Even Point

52%

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