The Constructor

NOVEMBER 15, 2011

Nominal Mixes In the past the specifications for concrete prescribed the proportions of cement, fine and coarse aggregates. These mixes of fixed cement-aggregate ratio which ensures adequate strength are termed nominal mixes.

Concrete 240

Concrete Design Foundation Materials 240

The Constructor

AUGUST 7, 2012

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Concrete 190

Concrete Construction Foundation Materials 190

The Constructor

NOVEMBER 20, 2011

The concrete shall be deemed to comply with the strength requirements if: a) every sample has a test strength not less than the characteristic value;or b) The strength of one or more samples though less than the characteristic value, is in each case not less than the greater of : 1) The characteristic strength minus 1.35

Concrete 229

Concrete Design Foundation Materials 229

The Constructor

AUGUST 7, 2012

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Concrete 223

Concrete Foundation Maine Materials 223

The Constructor

MARCH 21, 2012

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Concrete 230

Concrete Materials Foundation Design 230

The Constructor

NOVEMBER 25, 2011

WHY WE TEST CONCRETE SRTRENGTH AFTER 28 DAYS? Tweet Why do we test concrete compressive strength after 28 days? The table below shows the compressive strength gained by concrete after 1, 3, 7, 14 and 28 days with respect to the grade of concrete we use.

Concrete 250

Concrete Foundation Materials Design 250

The Constructor

NOVEMBER 8, 2011

This type of shrinkage is caused by the loss of moisture from the cement paste constituent, which can shrink by as much as 1% per unit length.

Concrete 229

Concrete Foundation Contract Materials 229

The Constructor

MARCH 25, 2012

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Concrete 171

Concrete Foundation Materials Design 171

The Constructor

MARCH 23, 2012

There are two ways of overcoming this problem: Embed another material in the concrete which is strong in tension – reinforced concrete Remove the tension altogether – by arching or prestressing.

Concrete 133

Concrete Foundation Materials Comparison 133

The Constructor

MARCH 25, 2012

Use of Precast Concrete in frames: There are two main types of precast building frame.

Concrete 233

Concrete Foundation Maine Materials 233

The Constructor

NOVEMBER 21, 2011

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Concrete 189

Concrete Foundation Materials Design 189

The Constructor

NOVEMBER 28, 2011

This method is used where large quantity of concrete work is involved at greater height, where other means of transporting is not easy to do.

Concrete 240

Concrete Transportation Foundation Design 240

The Constructor

NOVEMBER 22, 2011

It has many advantages when compared to the normal conventional concrete. Fly ash is considered as one of the waste industrial product that cannot be easily disposed.

Concrete 224

Concrete Foundation Materials Design 224

Construction Enquirer

JUNE 27, 2023

Underfunding and slow delivery of the Government’s rebuilding programme has seen the school estate deteriorate further leaving many schools still at critical risk of collapse. It now estimates that around 700,000 pupils are learning in a school that is unsafe or requires major refurbishment.

Plans 62

Plans Risk Education Estimating 62

The Constructor

MARCH 25, 2012

WHAT IS PRECAST CONCRETE? Tweet Precast concrete is cast under factory controlled conditions and not erected on site until it is fully hardened. Just like in-situ concrete, precast concrete can be plain, reinforced or prestressed concrete.

Concrete 130

Concrete Foundation Materials Contract 130

The Constructor

NOVEMBER 17, 2011

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Concrete 212

Concrete Foundation Materials Design 212

The Constructor

AUGUST 18, 2012

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Concrete 139

Concrete Foundation Materials Contract 139

The Constructor

MARCH 20, 2012

Cleanliness: when repairing concrete, care must be taken to remove any dirt or dust that will prevent the repair concrete bonding with the parent concrete. Expediency: The longer the repair is left, the more work has to be done, and the less likely that the repair will blend in.

Concrete 247

Concrete Portland Foundation Materials 247

FDR Safety

MARCH 31, 2015

A new construction industry report raises significant questions about the economic impact of OSHA’s proposed silica standard for construction, saying it will cost the industry about 10 times what the agency estimated. OSHA estimated the cost to the industry at about $511 million a year.

OSHA 120

OSHA Industrial Estimating Concrete 120

The Constructor

AUGUST 10, 2012

These are: Mild exposure Moderate exposure Severe exposure Very severe exposure, and Extreme exposure.

Concrete 181

Concrete Foundation Environment Materials 181

The Constructor

DECEMBER 17, 2011

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Concrete 161

Concrete Portland Foundation Materials 161

The Constructor

AUGUST 24, 2012

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Concrete 127

Concrete Foundation Materials Contract 127

The Constructor

MARCH 20, 2012

From the diagram above, we can see how the process unfolds.

Concrete 250

Concrete Foundation Materials Design 250

The Constructor

MARCH 22, 2012

Water within the hardened cement paste is forced to more as a result of the applied load.

Concrete 141

Concrete Foundation Materials Contract 141

The Constructor

JANUARY 22, 2012

The aggregate is more rigid than the cement paste and will therefore deform less (i.e. have a lower strain) under the same applied stress.

Concrete 137

Concrete Foundation Materials Contract 137

The Constructor

MARCH 25, 2012

The individual components are prefabricated off site then taken to site where they are erected.

Concrete 143

Concrete Foundation Materials Design 143

The Constructor

NOVEMBER 21, 2011

The concrete can be specified in two ways : a) by proportioning of the constituents /ingredients (nominal mix) b) by required strength (Design mix) Concrete is mixed by any two methods, based on requirement as per quality and quantity of concrete required.

Concrete 122

Concrete Foundation Materials Design 122

The Constructor

NOVEMBER 28, 2011

Procedure for measuring bulk density of concrete is as per IS 1199 – methods of sampling and analysis of concrete.

Concrete 133

Concrete Foundation Materials Design 133

The Constructor

SEPTEMBER 10, 2012

Organizing projects means defining roles and responsibilities, create a project charter, and develop high-level time and cost estimates. In this process you identify the business need for and objectives of the project; clarify competing demands and watch for scope creep.

Project Management 242

Project Management Management Concrete Foundation 242

Lets Build

MAY 23, 2022

Any construction project is a complex web of targets, opportunities, challenges, and risks. Little wonder, then, that the global prefabricated buildings market will be worth an estimated $153 billion by 2026. There are fewer ambient risk factors. There is less risk of on-site accidents. Materials are extremely durable.

Construction 148

Construction Site Materials Risk 148

BD+C

JUNE 14, 2023

This article will identify the primary causes of engineering failures, define proactive versus reactive maintenance, recognize the reasons for deferred maintenance, and identify the financial and safety risks related to deferred maintenance. The total estimated cost of the repair was $70,000.

Life Cycle 52

Life Cycle Concrete Engineering Injury 52

The Constructor

NOVEMBER 11, 2011

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America 203

America Concrete Foundation Airports 203

The Constructor

MARCH 18, 2012

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Concrete 235

Concrete Foundation Materials Design 235

The Constructor

JANUARY 14, 2012

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Concrete 203

Concrete Foundation Materials Contract 203

The Constructor

NOVEMBER 1, 2011

Sulphate attack in concrete foundation and cement mortar below ground level. Movement in walls above ground level and expansion and deterioration of cement mortar and concrete below ground level. Cracking in walls in line of weakness in structure. Clayey soil with high sulphate content. Inadequate support to foundation from land-fill.

Foundation 240

Foundation Concrete Construction Materials 240

The Constructor

MARCH 19, 2012

When concrete is fresh and in its liquid state it must be restrained within a mould in order for it to set in its required shape. A smooth outer surface provides the main support for the concrete as it sets. Formwork is the term used to describe this mould. For most in-situ pours, the formwork is made of wood.

Concrete 223

Concrete Foundation Materials Design 223

The Constructor

AUGUST 16, 2012

Adequate care should be taken by the contractor while laying and compacting the rubble soling to see that concrete surfaces in contact with soling are not damaged. Tweet Loading GET LATEST TOPICS IN YOUR EMAIL- SUBSCRIBE NOW.

Foundation 203

Foundation Concrete Materials Design 203