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Concrete

Goal Setting ? @EvaRykr Nails It!
2012-01-09 14:45:00
  Writing a post about goal setting would probably have made more sense before 2012 kicked off.  But then again, if I had read @EvaRykr?s post before 2012 I?d have better goals myself. But it?s not too late.  You can still rewrite your goals using some of the great info from Eva?s post from January ...
Concrete
2009-09-16 08:51:00
Can some body tell me about grades and strengths of different concrete mixes??
Concrete Grades and Strengths
2009-09-16 08:51:00
Can some body tell me about grades and strengths of different concrete mixes??
composition of concrete
2009-09-03 13:02:00
I need to make the heaviest concrete possible to use as a counterweight.Can anyone suggest a suitable mix.
Concrete Solutions
2009-08-30 13:22:00
Hello Everybody, Could you please advise me whether is a chemical available that Ican use to remove concrete deposits and stains off my concrete pump and tools which is not acid based? I would like to paint it on and then hose or water blast it off. I dont want to sand blast it because it will
Concrete beams for ceiling.
2009-08-28 17:26:00
Does any body knows how to build hard concrete beams? or knows any body that makes it. these are to support the ceiling or roof for a house.
Coating for Exterior Concrete
2009-08-13 06:15:00
I need to coat exterior concrete steps to cover chips and cracks. Can I do this with a concrete slurry? I'm not crazy about the 'pebbles in epoxy' coatings and don't want to paint. Freeze/ thaw is a concern. Thanks
How many Concrete Softwares are there in the industry?
2009-08-12 09:41:00
I was wondering if there are any softwares for concrete and if there are: which kind of and what are their functionalities and where can I get them? thanks
Software for Concrete
2009-08-12 09:41:00
I was wondering if there are any softwares for concrete and if there are: which kind of and what are their functionalities and where can I get them? thanks
FIX OF ANCHOR BOLT ON EXIST REINFORCED CONCRETE COLUMN
2009-08-11 10:17:00
I want to fix anchor bolt in exist RC column footing for super structure which is steel building which was not there since the previous design was not design for steel building , but now the client have decide to have steel structure ,the length of bolt 900mm , and the Exist RC column foot is about
Fixed Anchor Bolt for Reinforced Concrete Column
2009-08-11 10:17:00
I want to fix anchor bolt in exist RC column footing for super structure which is steel building which was not there since the previous design was not design for steel building , but now the client have decide to have steel structure ,the length of bolt 900mm , and the Exist RC column foot is about
gypsum/concrete
2009-08-06 17:18:00
I am experimenting with radiant floor heating. I want to pour a gyp/crete type substance over the radiant tubes but can't find a formula for mixing gyp/crete. Can anyone help?
Mixing Gypsum and Concrete
2009-08-06 17:18:00
I am experimenting with radiant floor heating. I want to pour a gyp/crete type substance over the radiant tubes but can't find a formula for mixing gyp/crete. Can anyone help?
Stained Concrete Gone Awry
2009-08-05 21:24:00
Please help, I have had my home's floor "stained" I say that because the contractor who did this said that is what he did. I am having problems with the floor blistering, in several areas some 5'x3' others smaller but getting worse. I have called the contractor back and he tells me that I have a
Buried Pipes and Concrete
2009-08-05 06:45:00
I'm calculating necessity of concrete weight in pipe burried under water table. I have calculate about bouyancy force from Guidelines for the design of burried steel pipe u.g 6.0 (ASCE series). The result is bouyancy force is negative. Did it mean that pi
Making Heavy Concrete
2009-08-04 22:52:00
I need to make a concrete weight as heavy as possible. What is the best mix for this?
What is the Best Thermal Lightweight Insulating Concrete or Grout Mix Desig
2009-08-04 00:49:00
What I am looking for is the most available thermal lightweight insulating concrete or grout mixture typically available in the U.S. This concrete or grout mixture will be used soon in the fire testing of a wall assembly that measures only 2-inches (50mm) thick. The wall test panel assembly will mea
WATER PROOF CONCRETE
2009-07-31 10:33:00
I got diyaghram wall under dam body, I am going to concruct waterproof wall for impervious purpose. I wonna know if any body made this kind of concrete, mix dizayn of concrete has to be soft beacuse of re digging, any body know about mix dizayn? plaese let me konw any body who knows
Finding a Hidden Drain in a Concrete Floor
2009-07-27 15:00:00
Fine CR4 folks, I need a bit of advice, the particular problem is outside my realm of knowledge. I've recently purchased a house, and there's a 1/2 bath in the basement. The seller seems to remember that when this bath was put in, there was also a shower drain in the basement concrete floor, but the
Reinforced Concrete Shear Walls
2009-07-27 06:13:00
I need to get a software for reinforced concrete shear walls. Any suggestion?
Concrete Water Tank Leaking
2009-07-26 14:09:00
Hello ...have old watertank 50K litres ..leaking from the floor ..small cracks/fissures did the job 4 yrs ago with cement mix....but movement in soil..has cracked AGAIN ... any (almost) permanent solution or at least 10 years !!!! had a look a some of solutions on display ..this watertank is for "p
Concrete handmade sink sunk into wall, Molds and waterproof materials need
2009-07-20 04:50:00
I am a stonemason. I talked myself and the homeowner into making a concrete sink directly in a rock wall. Originally I was just going to make a space and drop the bought metal or plastic or ceramic sink into it. I was not really serious, just a quirky suggestion but now they are gung ho! I have a
Concrete Sink: Molds and Waterproof Materials Needed
2009-07-20 04:50:00
I am a stonemason. I talked myself and the homeowner into making a concrete sink directly in a rock wall. Originally I was just going to make a space and drop the bought metal or plastic or ceramic sink into it. I was not really serious, just a quirky suggestion but now they are gung ho! I have a wa
Who need concrete admixture?
2009-07-15 08:51:00
We are concrete mamufactory,who need it can contact me freely?
A 'concrete' idea in China
2009-07-14 14:00:00
"China will account for about 40% of cement consumption in 2010," says Konrad Kuhn. In The Kon-Lin Letter, he looks at China Advanced Construction Materials (Other OTC: CADC)."China has been referred to as the world's largest construction site, using mor than 50% of the world's cranes. It accounts for half of all building activity in the world."The Chinese government's continued efforts to modernize the country's infrastructure is exemplified by such massive projects as the South-North Water Diversion, designed to redirect water to the northern plains from Central and South China. "This project alone will account for cement consumption of over 1 million metric tons per year; this project will take an estimated 40 years to be completed."Much of China's $586 billion stimulus package is allocated towards infrastructure projects, a key focus of China Advanced Construction."The company produces and supplys advanced ready-mi...
Concrete Volute Cooling Water Pumps
2009-07-14 10:33:00
We are in the process of procuring large concrete volute pumps for providing cooling water supply to condenser and Natural draft cooling tower. As the pumps can not be tested at works, what kind of tests are to be specified to ensure pumps follow the performance curves furnished by the vendor and op
Rice Concrete Cuts Greenhouse Emissions
2009-07-07 15:47:00
From Discovery News Top Stories : Discovery Channel: A new way of processing rice husks for use in concrete could lead to a boom in green construction. Rice husks form small cases around edible kernels of rice and are rich in silicon dioxide (SiO2), an essential ingredient in co
Brick Walls versus Concrete Blockwork
2009-07-05 11:43:00
Hi! Brickwall construction used as an external facade has been time-tested in very ancient buildings in Europe and elsewhere. This type of construction has withstood - sometimes over centuries - not only the vagaries of monsoon but also intense atmospheric weathering as well...Concrete Blockwor
Effects of Delay Pouring on Concrete Beams
2009-07-05 10:32:00
Effects of delay pouring on concrete beams-- my new study as of now.. There are plenty of methods to be used on having a delay pouring on my concrete beam samples (6"x6"x21"). One is at the cast break point surface, 2 holes are carved to form as keys at the desired break point and the break surface
Concrete 5 Theme conversion by Strobes
2009-07-04 20:08:00
I am currently working on a couple of websites and am going to use the Concrete 5 CMS I am looking to have some designs converted for use as themes within that CMS system I will supply the design... (Budget: $250-750, Jobs: CSS, PHP)
Leakage problems with concrete blocks
2009-07-04 08:59:00
I am in construction industry in Mumbai, India. My question is for construction of external wall of Building Natural bricks are better or Concrete blocks( Hollow or solid). In Mumbai we have seen leakage problems with concrete blocks. is this because the concrete block is not of required quality or
Reinforced Concrete Slabs - Cracking and Deflection Calculations
2009-06-29 18:01:00
I would like to share an engineering article about calculations that was prepared by the Structoris structural design team in order to assess the cracking and deflections of a slab. The deflection calculations took into account non-linear characteristics, creep effect and the decreased rigidity due
m20 concrete
2009-06-24 10:14:00
hey hi 2 everyone I wanted to know whats the test result of m20 grade concrete tested after 2 months by core cutting for a residential purpose n i have got the result 19 to 21 is it ok....
Concrete Mixes and Ratios
2009-06-23 09:27:00
what is m20 m25 and m30 mix, if any body can please describe or in lay-mans terms aggregates and ratios for these concrete mixes if possible water and consistency to be used?
Distant between Two Expansion Joint in concrete tank
2009-06-18 08:47:00
Dear all, Please tell me the distance required between two expansion joint in concrete tank. If possible please give me sample calculation for same.
Expansion Joints and Concrete Tanks
2009-06-18 08:47:00
Dear all, Please tell me the distance required between two expansion joint in concrete tank. If possible please give me sample calculation for same.
Inspecting Large Concrete Culverts
2009-06-17 20:18:00
What is the latest available technology for the inspection of large concrete culverts? A client requested assistance in finding inspection techniques and or technology that would enable them to inspect large concrete culverts, filled with water, without the need to use divers.
Applying Stucco to Homemade Concrete
2009-06-12 18:20:00
I am being asked to design the replacement of stucco to the stem wall of a 65-70 year old building at elevation 8500 feet. The existing stem wall is "concrete" which appears to have been made with some cement and materials from the local hillside, consisting of various sized and shaped rock
How Concrete Epoxy or Cement Grout Works as Adhesive?
2009-06-11 10:40:00
do the application of concrete epoxy or cement grout as adhesive at the surface of the cast-break strengthens the joint of the partially cast beams?
Concrete Epoxy or Cement Grout as Adhesives
2009-06-11 10:40:00
do the application of concrete epoxy or cement grout as adhesive at the surface of the cast-break strengthens the joint of the partially cast beams?
Concrete Pad for Outdoor Fireplace
2009-06-08 15:21:00
Helping a friend determine how to size concrete pad and footers along with reinforcement needed to build an outdoor fireplace and grill. Will be humongous!!! Fireplace will fill pad which is currently sized @ 17 ft long x 6 ft wide. Stone will be used for fireplace @ a height of approx. 3 ft tall
Garage Concrete Crack
2009-06-05 21:19:00
We having problems cracks in all directions cause by installation of garage floor drainage. In my understanding the contractor must drill hole to uncure concrete. Responde from the builder was that those cracks are necessary. Here is the quote: "Underneath there is a v joint that i
undergound concrete water tanks
2009-05-31 18:38:00
Anyone know an available publication design guide for small underground concrete water tanks (15,000) gals
Epoxy Coating for concrete
2009-05-29 10:22:00
What is minimum Epoxy coating for concrete in a acetic acid plant
Epoxy Coatings for Concrete
2009-05-29 10:22:00
What is minimum Epoxy coating for concrete in a acetic acid plant
How to Mix M20 Concrete
2009-05-26 16:14:00
Hi I am an mechanical Engineer, Would like to know how to do Mix Design of M 20? what will be the percentage of cement, sand and aggregrate and water in Kgs / Cu. Mtrs.
Concrete Slab Floor for Second Floor Greenhouse
2009-05-15 08:41:00
I am an owner who wants to build a second floor greenhouse. An architect was hired and paid in full. I have the building permit based on drawings produced by him. However, I am stuck on getting details so I can produce a scope of supply for the concrete contractor to quote. Basically the d
Garage Floor: How to Seal Metal to Concrete
2009-05-14 17:40:00
I have a metal frame garage sitting on a concrete pad. There is about a 1/16 inch gap between the metal and the foundation. Everytime it rains water gets up over the foundation and floods my garage floor. The uphill side of my garage is about 2 1/2 feet underground. I have dug down to install fr
Bendable Concrete
2009-05-07 17:22:00
From Neatorama: Traditional concrete will only take so much pressure before it breaks. A team led by Victor Li of the University of Michigan in Ann Arbor has developed a new type of concrete that bends under such pressure and can repair itself! The self-healing concrete develops ma
Concrete Triangles
2009-05-07 06:16:00
I am considering making a geodesic dome (20' dia, 5/8 dome) with concrete panels. The current plans are to make 1" thick panels with 2x4 equivalents cast in around the parimeter. Using monofilimant nylon, no re-bar, and a fair number of 'chemicals' to enhance the properties and make it 'greener'
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