Feb 23, 2008 and probably more hartley ferro cement boats than all other ferroboat designers added together. Pdf recent perspectives for ferrocement researchgate. The advantage of ferrocement construction is that materials are cheap and readily available, while the disadvantages are that construction labor costs are high, as are operating costs. In some underdeveloped countries it may be necessary to obtain a certificate of the materials composition and date of manufacture, where there is the likelihood of low quality and, perhaps, adulteration. The yard wanted to inspect the boat before they tried to lift her, given that she was ferro cement and theyd had problems with other cement boats. The major advantages of ferro cement are as following. I havent thought about ferro cement boats since the 1970s, when i was dreaming of building one. Ferrocement tanks are used in many regions of the world as water storage tanks.
Given their size and precast production process, these. Since i havent heard of any companies using it these days i thought it might be an. It is a thinwalled construction consisting of rich cement mortar with uniformly distributed and closely spaced layers of continuous and relatively small diameter mesh metallic or other suitable material. Ferro cement wall panels hold a strong potential for energy and cost effective construction. The first ferro builds took place in the early 1800s with many from the 1890s still around. Next, a coating of strong polyethelene is applied to the hull mold. She was built by a couple of friends who wanted a quick and cost effective way of sailing around the world, with great accommodation for all their friends. Johns book, the new way of life, encouraged countless numbers to throw off the shackles of working life, build a boat. Ferrocement is a construction material consisting of wire meshes and cement mortar. What are the advantages and disadvantages of a concrete.
The company grew quickly and sold ferro cement boat plans to dreamers all over the world. Cemex uk sorryi know this is a nz forum make a cement called cemex rugby sulphate which is a highly sulphate resistant. Boats made with ferro cement secondhand 24 ferro cement boats for sale. When building ferrocement structures the sand cement mortar is applied to the reinforcing wire with a trowel, never poured like common concrete work. Make ferrocement roof panels on the ground so you dont have to plaster overhead. Ferrocement or ferro cement is a system of construction using reinforced mortar or plaster lime or cement, sand and water applied over an armature of metal mesh, woven expandedmetal or metalfibers and closely spaced thin steel rods such as rebar. The components of ferrocement are portland cement, sand, water and reinforcing steel, which is referred to as the armature. There is nothing inherently wrong with the method for medium to heavy displacement boats, properly built they are long lasting, low maintainance boats that dont suffer from rot, rust, delams, wet cores, osmosis and the many other problems of most other methods, hell ferro cement ltd used a launch. During the late 19th century, there were concrete river barges in europe, and during both. Secondhand ferro cement 63 ketch in hampshire united kingdom. Pier luigi nervi introduces ferro cement concept in 1942 when he. Those light ships and such of ferro cement that have survived 100 years of continuous use, should be looked at as examples of the method. Explore 3 listings for ferro cement at best prices.
A ferrocement hull can prove to be of similar or lower weight than a fiber reinforced plastic. Pdf ferrocement is the oldest form of the reinforced concrete, dating back two centuries. She was built by a couple of friends who wanted a quick and cost. Ferro cement sailing boat moored at summerland point, lake macquarie. If the cement is used with admixtures, care should be exercised in compatibility. Ferrocement boat building manual volume 3 boat design net. Some of the info seems to be out there but is sometimes is difficult to find 1. Their hulls are massive, which is why theyve survived.
The finished craft has some real advantages over conventionally constructed boats. Post jobs, find pros, and collaborate commissionfree in our professional marketplace. Pdf ferrocement is the oldest form of the reinforced concrete, dating back two. Ferrocement start download portable document format pdf and ebooks. Jul 03, 2017 hi all i had a bit of spare time last weekend and ended up looking up ferro cement boats on the net something that surprised me was that a few web sites said that the optimum hull thickness was 58 of a inch using 14 inch steel bar for the frame with 4 layers of mesh on either side of the bar and a 18th of a inch of plaster over the steel work but it also said that a lot of home builders.
As the amount volume of steel required in ferro cement is more. How ever, it is expected that with low labour costs in orissa, ferrocement boats would be viable even in smaller sizes. Ferro cement buildings are better pollution and fire resistant as compared to rcc. How to build a ferrocement tank with pictures wikihow. Gilcraft ferro cement boats for sale in australia boatsales. Build your own boat boat building guides hartley boats. All boat plans for sale on this website have been designed by richard hartley, colin brookes and their associates. This page is for anyone who has an interest in ferro cement boats but particularly the designs of richard hartley. Both of these documents are intended to supplement the main instructions in aci 318.
Ferro cement can be modified to resist even high temperatures, say 1200c to 1500c. Back on the market due to time wasters no time wasters or daydreamers listing for rolling stone a 1976 built ferro cement ketch, currently ashore in lymington, hampshire uk uk registered. View our full range of gilcraft ferro cement boats online at. In a ferrocement sailing boat, what is the risk of the metal. Ferrocement water tank, ferrocement house, and ferrocement boat. Mixes for handbuilt projects and for noncritical uses are described. Hartley boats has the widest range of boat plans for sail boats, power boats, catamarans and trimarans, dinghys and small craft, canoes and kayaks, surfboards and surf skis, vintage power boats, self steering capabilities and trailers. Cemex uk sorryi know this is a nz forum make a cement called cemex rugby sulphate which is a.
Construction procedure is easy, quick and no skilled labours are. Ferrocement is more widely used in asia and parts of the pacific. Here it is used for fishing boats of various sizes. Ferrocement fc is a form of thinshell construction that uses standard.
We had originaly hoped to limp her north under sail to work on her at a boat yard closer to our home, but decided she needed some basic work. Grp boats are not maintenancefree, but pretty close. A composite material is a formed that behaves differently from reinforced. When dry, the whole is as sturdy and seaworthy as wood or steel. See more ideas about cement, faux bois and concrete sculpture. Because of the reinforcement, ferro cement does not need to be as thick as concrete, and designers consider it more as a tensile skin that can be made in just about any shape.
Hartley ferro cement boat owners association facebook. How to build a boat out of ferrocement diy mother earth news. Ferrocement advantages and application of ferrocement. Concrete ships are built of steel and ferrocement instead of more traditional materials, such as steel or wood. The tensile strength of ferrocement is very high than conventional concrete. The disasterous effects of grounding on reefs and rocks, of ferro cement keeled vessels infact a monocoque constructed hull of almost any material, which have not been constructed with integral floors, has been well in evidence over the last 50 years or so.
In a ferrocement sailing boat, what is the risk of the. If you add to the previous analysis the considerably increased difficulties of fitting. The cement is typically a very rich mix of cement and sand in a 3. I just found this great technique for making ferrocement roofs at steves flying concrete site. This site is devoted to the promotion of ferroboats as well as a base for all matters ferro in the boating world. This 62 ketch rigged ferro cement sailing yacht was home built in 1976 on the river yar in yarmouth, isle of wight.
Some special applications like sand molds may benefit from prior coating like wet slurries grout, also called neats cement or more rarely slip. Boats made with ferro cement secondhand 23 ferro cement boats for sale. Quality of ferrocement works are assured because the components are. Ferro cement componets have high strength as the cement content is very high i. There are some excellent homebuilt ferro boats out there, but there are plenty of the other kind as well. Page 1 of 2 repairing ferro cement hulls posted in ferrocement boat owners association. Hartley rorc 39 for myself as well as act as a grunt on plastering day for a bunch of my friends who were also building ferro boats and i can tell you that there were many many boats built by both proffesional yards and amatures that were as fine as those in any other material.
Is it ever a good idea or is it a matter of manufacturer and. The metal commonly used is iron or some type of steel. This book presents the latest developments in research and application of the material. Three proportions of cementsand and water were selected based on the results of preliminary tests of wall panels for lowcost ferrocement housing. Nov 10, 2017 in my opinion, the popularity of grp fiberglass boats is due to their near indestructible hulls. All components are purchased at mason supply stores. According to, ferrocement is the cheapest and easiest form of construction for boats over 25 ft. Sep 29, 2015 page 1 of 2 repairing ferro cement hulls posted in ferrocement boat owners association. Abstract ferrocement is a composite material made up of cement mortar and reinforcement in the form of layer of mesh. The following 9 files are in this category, out of 9 total. Although discontinuously used on the market, ferrocement is a contemporary material of reinforced concrete. Pdf ferrocement has the versatility that can be sculptured or shaped into numerous. How to repair drywall and fix a large hole in the plaster wall the easy way duration. In my opinion, the popularity of grp fiberglass boats is due to their near indestructible hulls.
Terry, youre correct in principle that ferro is a building material and should be able capable of being shaped into a boat. Boats have been built in ferro cement from 10ft to 20,000 tons. Since the steel is spread over the area, the ferro cement components are usually a homegenious in composition. Ferrocement 63 ketch in hampshire sailboats used 01101. Find your ideal boat boat, compare prices and more. Presented by vipul 3108 ridham 3408 hatim 8 definition of ferro cement aci committee,549,1988 ferro cement is a form of reinforced concrete using closely spaced multiple layers of mesh andor small diameter rods completely infiltrated with. Before building the walls and roof of the tank, there must be a sturdy foundation in place. Ferrocement boat building manual volume 1 boat design net. Hartleys guide to boat building hartley boat plans. Generally, it can be preferable to use pure portland cement powder and add locally found sands or aggregates. Is it ever a good idea or is it a matter of manufacturer and current condition.
It takes around two weeks to reach this point if two people work on the boat full time. Since i havent heard of any companies using it these. For amateur construction using the standard hartley truss frame, method around 25ft is about the smallest that can be built smaller requires other methods. Ferrocement boats for disaster mitigation in coastal orissa.
It is used for a wide range of application including construction of boats, water tanks, slabs and. We had arranged to be the last haul out of the day and leave the boat hanging in the. The lowcost technology is simple, durable, and reproducible. Restoring aquarius, our 55 ferro cement sailing ketch. Definition ferro cement is a type of thin wall reinforced concrete, commonly constructed of hydraulic cement mortar, reinforced with closely spaced layers of continuous and relatively small size wire mesh. Ferrocement is a construction technology which can be used almost every where e. Technical data sheet of the secondhand sailboats for sale. The 3,000 ton ship was abandoned shortly after its. Compared to other cement concrete structures, those made of. In july of 2002 we were ready to start work on aquarius.
Ferro cement is a term commonly used to describe a steelandmortar composite material. Ferrocement is a versatile, construction material, with applications in low cost housing, rehabilitation, strengthening and repair of structures. Steve explains how to make roof panels on the ground so you dont have to plaster overhead. Worlds largest concrete ship dismantled after 40 years on the riverbank. Mortar provides the mass and wire mesh imparts tensile strength and ductility. Incredibly, this boat was still afloat in 1949, that is to say a hundred years after it was constructed. Get an email alert for new ads matching your search. Repairing ferro cement hulls ferrocement boat owners. In ferro cement, cement matrix does not crack since cracking forces are taken over by wire mesh reinforcement immediately below the surface.
Once the planking is in place, any depressions or bulges must be leveled. We had them lift the mizzen mast off the deck and take it down to the mast yard for refinishing and rigging. Explore 3 listings for ferro cement boats for sale uk at best prices. The easy way to make ferrocement roof panels natural. According to shahs published works, the lambot was the first small boat made of ferrocement in 1849. Some suppliers include all ingredients prepackaged, just add water, but these prevent tailoring mixes for your specific requirements. The mesh may be made of metallic or other suitable materials. Unfinished project includes 12m mast, sails, stainless steel cables and turnbuckles, brand new 40hp volvo diesel penta engine all to be fitted. Ferrocement boat building, the inverted wood mold method. The structures made with ferrocement are thin and lightweight. Ferrocement or ferrocement is a system of construction using reinforced mortar or plaster lime. Steel rods and wire mesh are shaped into the form of a hull and plastered over with fresh cement. Ferro cement is a very good fire resistant material having capacity to resist fire up to 750c for long period of 48 hours and even more. Build prototype timber country boat 12 feet using traditional artisans.
It seems like i read an article about some guy in an old ferro cement sailboat who was attacked by pirates and he fired up the engine and rammed and sank the pirate boat. Secondhand ferro cement 63 ketch with ford 115hp desel engine, 18. What links here related changes upload file special pages permanent link page. All cements are to be to bs 12 or equivalent local standard. Generally, just enough water to obtain a sticky, plastic consistency. Johns book, the new way of life, encouraged countless numbers to throw off the shackles of working life, build a boat and sail off to the south pacific. It is a strong, versatile, lowcost, longlasting building material made from a wire reinforced mixture of sand, water, and cement. Applications of ferrocement in construction is vast due to the low self weight, lack of skilled workers, no need of framework etc. Ferro cement d iff e r s from reinforced concrete in making greater proportional use of steel over cement. I was perusing the boats for sale on the web and came across a number of ferrocement hulled boats and i was wondering what you thought of that material in general for use in a cruising boat. The material used in ferrocement consists primarily of mortar made with portland cement, water and aggregate and the reinforcing mesh.
Boats made with ferro cement second hand 24 ferro cement boats for sale. Ferro cement except for wooden flooring inside the hulls, the boats are entirely of ferro cement, a process developed by prof. Ferro indicates that the material is made up of iron. A ferro hartley, around 38, pro built in nz, or built to specs wherever would suit me just fine.
Pier luigi nervi introduces ferro cement concept in 1942 when he observed that reinforcing concrete with layers of wire mesh produced a material possessing the mechanical characteristic of an approximately homogenous material. Ferro cement is the name given by english speaking people to a boat building method using steel wires covered with a sand and cement plaster, patented in 1855 by the french, who called it ferciment. In the west, the main application for ferrocement has been for the construction of boat hulls, including racing yachts. Ive started this thread to record what ive learnt about repairing ferro cement. The ferrocement motorboat, designed and built by pier luigi nervi with his son antonio, and donated to tor vergata university by his granddaughters irene, claudia and lucia, is probably the last existing example of the renown concrete boats designed and built by the engineer since 1944, with the aim of testing and developing the building technique. They dont rot, rust, dissolve in the presence of water, be it fresh or salt. Delays were experienced once by a longshoremens strike but more frequently by shipping documents not conforming to bahamian. Oct 28, 2019 ferrocement tanks are used in many regions of the world as water storage tanks.
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