what factors can affect concrete mix philippines

Top 15 Factors Affecting Strength of Concrete

Sep 13 2017 0183 32 The factors affecting the strength of concrete are mentioned below These factors can be either dependent or independent of each other when comes to the concrete strength Most of the factors are interrelated in certain means The primary factor that has a higher influence on the strength of the concrete is the mix design factors Each of them is mentioned and explained in detail one by one...

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Types and Causes of Concrete Deterioration

Concrete can deteriorate for a variety of reasons and concrete damage is often the result of a combination of factors The following summary discusses potential causes of concrete deterioration and the factors that influence them CORROSION OF EMBEDDED METALS Fig 1 Corrosion of reinforcing steel is the most common cause of concrete...

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Factors of School Effectiveness and Performance of

May 01 2017 0183 32 interventions to improve quality of education This study determined the factors of school effectiveness and level of school performance of private and public elementary schools in the Second Congressional District of Cagayan Province Philippin The study made use of mixed...

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Bleeding of Concrete Causes Effect and Ways to Reduce it

Number of problems can occur in concrete due to improper mixing curing and placing one such problem is bleeding in concrete BLEEDING in concrete is a phenomenon in which free water in the mix rises up to the surface and forms a paste of cement on the surface known as laitance...

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Factors Affecting Concrete Mix Design Strength

Jan 29 2015 0183 32 Factors Affecting Concrete Mix Design Strength The above stated design strength variable factors are explained below based on different theories and specifications 1 Water/cement ratio Water to cement ratio W/C ratio is the single most important factor governing the strength and durability of concrete Strength of concrete depends upon W...

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Constituent Materials of Concrete

The ways in which binders affect concrete mortar and similar products can vary with the chemical and physical properties of the source materials the constituent materials the mix design and to a lesser extent the variations in the cement manufacturing process Portland Cement Portland cement...

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PDF Effect of Compaction on Assessed Concrete Strength

The quality of concrete can be assessed by means of minor-destructive methods Pull-out test is an example of minor-destructive tests The test causes only minimal destruction to the structure and...

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7 Things to Avoid When Working With Concrete in Cold

Sep 24 2020 0183 32 When placing your concrete the placement of your slab factors into the effectiveness of the concrete curing conditions Frozen ground can settle when thawed causing the concrete to crack The fresh concrete closest to the ground will also cure slower than the surface meaning the top of your slab will set while the bottom stays soft...

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Compressive Strength Test of Concrete

Compressive strength as a concrete property depends on several factors related to quality of used materials mix design and quality control during concrete production Depending on the applied code the test sample may be cylinder 15 cm x 30 cm is common...

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Guide to Cement and Aggregates Factors per Concrete Class

Jun 17 2019 0183 32 Handy guide on factors to multiply per cubic on different concrete class mixtur Just multiply each factor to the total volume in cubic meter and you ll get the needed amount of cement 40Kg/bag sand cum and gravel cum Class C 2 000 psi Cement 5634 Bags Sand 04794 cum Gravel 0898 cum Class B 2 500 psi...

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Aggregate Factors Affecting the Grading of Aggregate

It can be defined as separation of the constituents of a heterogeneous mixture so that their distribution is no longer uniform In the case of concrete the difference in the size of particles and in the specific gravity of the mix constituents is the main cause of segregation but its extent can be controlled by the choice of suitable grading and by care in handling...

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Solving Finishing Problems Concrete Construction Magazine

Feb 05 2014 0183 32 Concrete temperature wind speed relative humidity and ambient temperature all affect the evaporation rate of water from the concrete surface If the evaporation rate is too great or the bleed rate is too slow the surface of the concrete will dry out making it difficult to close...

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WHAT ARE THE FACTORS AFFECTING WORKABILITY OF CONCRETE

Apr 04 2014 0183 32 Factors Affecting Workability of Concrete A concrete is said to be workable if it is easily transported placed compacted and finished without any segregation Workability is a property of freshly mixed concrete and a concrete is a mixture of cement aggregate water admixture Due to this all the properties of concrete whether in fresh...

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11 Factors that can Affect the Strength of Concrete

Nov 17 2018 0183 32 Compaction of concrete increases the density of the concrete because it is the process in which air voids are removed from freshly placed concrete which makes the concrete compact and dense The presence of air voids in concrete greatly reduces its strength Approximately 5 of air voids can reduce the strength by 30 to 40...

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What is the effect of decreasing PH on concrete properties

The decrease in pH of the concrete mix before casting and molding affects the early hydration and strength but improves the later age concrete properti Cite 5 Recommendations...

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EFFECTS OF AGGREGATE TYPE SIZE AND CONTENT ON

coarse aggregate contents with aggregate volume factors ACI 2111-91 of075 and aggregate was supplied by Geiger Ready-Mix and Iron Mountain Trap Rock Company ratio In fact it is generally agreed that although larger coarse aggregates can be used to make high-strength concrete it is easier to do so with coarse aggregates below 12...

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Effect of water absorption by the aggregate on properties

aggregate concrete is normally based on dry lightweight aggregate prewetted aggregate is normally used in North America Different moisture condition and thus different water absorption by the aggregate may affect both the fresh and the hardened concrete properties differently In the present experimental...

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Properties of Concrete

Factors affecting setting Following are the factors that affect the setting of concrete 1 Water Cement ratio 2 Suitable Temperature 3 Cement content 4 Type of Cement 5 Fineness of Cement 6 Relative Humidity 7 Admixtures 8 Type and amount of Aggregate 2 Workability of Concrete...

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Creep Of Concrete

Oct 29 2017 0183 32 Factors Affecting Creep Of Concrete The factors that affect creep of concrete are similar to the factors affecting shrinkage which are as following 1 Water-cement Ratio The rate of creep is increased with increasing water cement ratio 2 Humidity It is influenced by humidity and drying condition of the atmosphere 3 Age Of Concrete...

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Factors Affecting Compaction

Mix aggregate and binder properties can also affect compaction They do so by affecting 1 the ease with which aggregate will rearrange under roller loads and 2 the viscosity of the binder at any given temperature Gradation affects the way aggregate interlocks and thus the ease with which aggregate can be rearranged under roller loads...

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Batching Mixing Transporting and Handling Concrete

affect the concrete properti In addition the sequence in which they are added to the mix can be important too Ready Mixed Concrete Ready mixed concrete is proportioned and mixed off the project site and is delivered to the construction area in a freshly mixed and unhardened state It can be manufac-tured by any of the following methods...

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What Factors Can Affect Concrete Mix

what factors can affect concrete mix -- China Mining concrete wikipedia the free encyclopedia portland cement is the mostmon type of cement in general usage it is a basic ingredient of concrete mortar and plaster...

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Top 14 Factors Affecting Strength Of Concrete

Compaction of concrete increases the density of the concrete because it is the process in which air voids are removed from freshly placed concrete which makes the concrete compact and dense The presence of air voids in concrete greatly reduces its strength Approximately 5 of air voids can reduce the strength by 30 to 40...

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Factors Affecting Workability of Concrete

Dec 25 2020 0183 32 Workability is a property of freshly mixed concrete and a concrete is a mixture of cement aggregate water admixture Due to this all the properties of concrete whether in fresh state or hardened state is affected by these ingredients and their proportions Followings are the factors affect the workability of concrete Water Content...

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Factors affecting Concrete Mix Design

Factors Affecting Concrete Mix Design Strength...

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Segregation and Bleeding in Concrete Causes Effects

Sep 23 2017 0183 32 Segregation can be controlled by maintaining proper proportioning the mix By peculiar handling placing transporting compacting and finishing of concrete Adding air entraining agents admixtures and pozzolanic materials in the mix segregation controlled to some extent...

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Factors Affecting Permeability of Concrete

Dec 24 2020 0183 32 So such factors shall be taken into consideration during mix design and construction of concrete structure Factors Influencing Concrete Permeability There are three major factors that influence the permeability of concrete 1 Water to Cement ratio Water to cement ratio influences concrete permeability to a great extent...

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Factors Affecting Digestibility of Feed

Apr 19 2018 0183 32 Carbohydrates The nature and level of dietary carbohydrates affect the digestibility of all nutrients present in the diet High crude fibre content of mixed diets decreases their digestibility The higher the percentage of crude fibre in a ration the lower is the digestibility...

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What factors affect concrete strength

There are lots of factors which may affect concrete strength Concrete curing is the process of maintaining adequate moisture in concrete within a proper temperature range in order to aid cement hydration at early ag During hydration various c...

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Tests on Concrete

SAMPLING The first step is to take a test sample from the large batch of concrete This should be done as soon as discharge of the concrete commenc The sample should be representative of the concrete supplied The sample is taken in one of two ways For purposes of accepting or rejecting the load Sampling after 02 m3 of the load has been poured...

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