Explain two causes of each i) Segregation ii) Bleeding of concrete

1 Answer

Answer :

Causes of Segregation:

1. Inaccurate water cement ratio.

2. Improper mixing of concrete ingredients.

3. Longer distance transportation.

4. More height of concrete placing.

5. Excessive or over vibration.

Causes of Bleeding of concrete:

1. Inaccurate concrete mix proportion with higher w/c ratio

2. Use of more flaky aggregates.

3. Insufficient mixing of concrete.

4. Lean mix i.e. less cements content.

5. Delay in finishing of freshly placed concrete mix.

Related questions

Description : Excess quantity of water (a) Makes the concrete mix harsh (b) Makes the concrete mix unworkable (c) Causes segregation in concrete (d) Causes bleeding in concrete.

Last Answer : both c&d

Description : Insufficient quantity of water (a) Makes the concrete mix harsh (b) Makes the concrete mix unworkable (c) Causes segregation in concrete (d) Causes bleeding in concrete.

Last Answer : both a&b

Description : The increased cohesiveness of concrete, makes it (A) Less liable to segregation (B) More liable to segregation (C) More liable to bleeding (D) More liable for surface scaling in frosty weather

Last Answer : Answer: Option A

Description : Separation of water or water sand cement from a freshly concrete, is known (A) Bleeding (B) Creeping (C) Segregation (D) Flooding

Last Answer : Answer: Option A

Description : The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called (A) Segregation (B) Bleeding (C) Bulking (D) Creep

Last Answer : Answer: Option B

Description : A concrete using an air entrained cement (A) Has strength less than 10% to 15% (B) Has more resistance to weathering (C) Is more plastic and workable (D) Is free from segregation and bleeding

Last Answer : Answer: Option C

Description : A badly mixed cement concrete results in (A) Segregation (B) Bleeding (C) Honey combing (D) None of these

Last Answer : Answer: Option C

Description : The continuous strain, which the concrete undergoes due to application of external loads is called [ A ] Creep [ B ] Bleeding [ C ] Workability [ D ] Segregation

Last Answer : [ A ] Creep

Description : The separation of water or water cement mixture from the freshly laid concrete is known as [ A ] Workability [ B ] Segregation [ C ] Bleeding [ D ] Creep

Last Answer : [ C ] Bleeding

Description : The concrete mix which causes difficulty in obtaining a smooth finish, possess (A) Segregation (B) Internal friction (C) Hardness (D) Bleeding

Last Answer : Answer: Option C

Description : Separation of coarse aggregates from mortar during transportation, is known (A) Bleeding (B) Creeping (C) Segregation (D) Shrinkage

Last Answer : Answer: Option C

Description : During the process of hardening of cement, _______ will takes place [ A ] Bleeding [ B ] Segregation [ C ] Hydration [ D ] All the above

Last Answer : [ C ] Hydration

Description : The property of the ingredients to separate from each other while placing the concrete is called (A) Segregation (B) Compaction (C) Shrinkage (D) Bulking

Last Answer : Answer: Option A

Description : In order to avoid segregation, fresh concrete should be dropped from a height of [ A ] Less than one meter [ B ] Less than two metres [ C ] More than one metre [ D ] More than two metres

Last Answer : [ A ] Less than one meter

Description : Segregation is responsible for (A) Honey-combed concrete (B) Porous layers in concrete (C) Surface scaling in concrete (D) All the above

Last Answer : (D) All the above

Description : Too wet concrete may cause (A) Weakness of concrete (B) Excessive laitance (C) Segregation (D) All the above

Last Answer : (D) All the above

Description : To prevent segregation, the maximum height for placing concrete, is (A) 100 cm (B) 125 cm (C) 150 cm (D) 200 cm

Last Answer : Answer: Option A

Description : Pick up the correct statement from the following: (A) Continuous grading is not necessary for obtaining a minimum of air voids (B) The omission of a certain size of aggregate is shown by ... in concrete increases the workability but also increases the liability to segregation (D) All the above

Last Answer : Answer: Option D

Description : Pick up the correct statement from the following: (A) Segregation is necessary for a workable concrete (B) Consistency does not affect the workability of concrete (C) If the concrete mix is dry, the slump is maximum (D) None of these

Last Answer : Answer: Option D

Description : To prevent segregation the concrete should to be thrown from a height of more than. (a) ½ m (b) 1m (c) 1.5m (d) 2m

Last Answer : (b) 1m

Description : Segregation of concrete (a) Increases the strength of concrete (b) Decreased the strength of concrete. (c) Not effect to strength of concrete. (d) None of these.

Last Answer : (b) Decreased the strength of concrete.

Description : In order to avoid segregation, the concrete should not be thrown from a height (a) Agree (b) Disagree (c) Not known (d) None of these

Last Answer : (a) Agree

Description : Segregation in concrete results in (a) Honey combing (b) Porous Layers (c) Surface scaling (d) All the above

Last Answer : (d) All the above

Description : Which of the statements listed below about bleeding disorders is/are correct? A. Acquired bleeding disorders are more common than congenital defects. B. Deficiencies of vitamin K decrease production ... disorder. D. Von Willebrand's disease is a very uncommon congenital bleeding disorder.

Last Answer : Answer: AB DISCUSSION: Acquired bleeding disorders are significantly more common than congenital bleeding defects. Vitamin K deficiency may be related to malnutrition or competitive inhibition ... a relatively common disorder of bleeding and is generally undetectable by routine screening methods

Description : Explain briefly the meaning of the following terms: (i) Composting. (ii) Incineration. (iii) Segregation. -Geography

Last Answer : (i) Composting: It is a process that involves decomposition of organic waste into humus known as compost which is a good fertilizer for the plants. (ii) Incineration: It is a ... at source into different categories of biodegradable and non-degradable waste, this process is called Segregation.

Description : The use of air-entraining agents in concretes (a) Increases workability of concrete (b) Decreases bleeding (c) Decreases strength (d) All of these

Last Answer : (d) All of these

Description : Due to Bleeding action concrete becomes [ A ] Weak [ B ] Strong [ C ] Hard [ D ] Durable

Last Answer : [ A ] Weak

Description : Segregation of Mendelian factor (Aa) occurs during (a) diplotene (b) anaphase I (c) zygotene/pachytene (d) anaphase II.

Last Answer : b) anaphase I

Description : Segregation of Mendelian factors (no linkage, no crossing over) occurs during (a) anaphase I (b) anaphase II (c) diplotene (d) metaphase I.

Last Answer : a) anaphase I

Description : What principle states that during gamete formation genes for different traits separate without influencing each other’s inheritance? a. principle of dominance b. principle of independent assortment c. principle of probabilities d. principle of segregation

Last Answer : b. principle of independent assortment

Description : Which of the following laws best describes the statement: The members of an homologous (pron: ho-MOL-eh-gus) pair of genes are separated during meiosis (pron: my-O-sis) of reproductive cells so that ... law of independent assortment c) law of filial (pron: FILL-ee-al) generation d) law of sorting

Last Answer : ANSWER: A -- LAW OF SEGREGATION

Description : What causes bleeding from the base of teeth ?

Last Answer : In most cases, the cause of bleeding gums is inflammation of the gums. Inflammation of the gums is caused by the accumulation of plaque or toothpaste in the teeth. This is called gingivitis. Later ... With a little care, the problem of bleeding teeth will no longer exist. Source: ittefaq.com.bd

Description : What are the major causes of gastrointestinal bleeding?

Last Answer : Gastrointestinal bleeding can be caused by bleeding in the any part of the upper and lower GI tracts. It can also be caused by hemorrhoids, colon or stomach cancer, and gastric ulcers.

Description : What are the causes of gastrointestinal bleeding?

Last Answer : There are many causes of gastrointestinal bleeding. They include colitis, which is inflammation of the bowel, as well as parasites and irritation.

Description : Which of the following statement(s) is/are true concerning the results of a National Institute of Health Consensus Conference on venous thrombosis and low-dose heparin prophylaxis? a. The odds of ... treated with low-dose heparin d. There was no difference in the incidence of bleeding complications

Last Answer : Answer: a, b, c In a metaanalysis of 70 randomized trials in 16,000 patients comparing low-dose heparin prophylaxis with standard therapy, the odds of developing deep venous thrombosis ... Similarly, the effectiveness of prophylaxis was not influenced by either two or three times daily dosage

Description : Name the vitamin whose deficiency causes excessive bleeding? (1) Vitamin A (2) Vitamin B (3) Vitamin K (4) Vitamin C

Last Answer : (3) Vitamin K Explanation: Vitamin K is a group of structurally similar, fat-soluble vitamins that the human body requires for complete synthesis of certain proteins that are prerequisites for blood coagulation.

Description : Addition of pozzolana to cement causes (A) Reduction in permeability (B) Loss of heat of hydration (C) Reduction in bleeding (D) All the above

Last Answer : Answer: Option D

Description : Though ethacrynic acid is also a high ceiling diuretic, it is practically not used because: A. It is more ototoxic B. It causes diarrhoea and gut bleeding C. Its response increases steeply over a narrow dose range D. All of the above

Last Answer : D. All of the above

Description : Explain Mendel’s law of segregation.

Last Answer : The two pairs of factors separate during the formation of gametes. They do not blend but separate into different gametes. The gametes combine together by random fusion at the time of gamete formation.

Description : Explain the law of segregation and law of independent assortment proposed by Mendel 

Last Answer : Ans: 1. Law of Segregation: This law shows that the two alleles of a gene when present together in a heterozygous state, do not fuse of blend in any way, but remain distinct and segregate ... factors, then the inheritance of one pair of factors is independent to that of other pair of factors.  

Description : Justify the remedial measures for following defects : (i) Formation of pot holes in case of WBM roads. (ii) Formation of ruts in case of earthen roads. (iii)Bitumen bleeding in case of bituminous roads.

Last Answer : The cross section of hill road is shown below: (i) Formation of pot holes in case of WBM roads : The pot holes should be patched up by. (1) Cutting the defective area to rectangular shape and ... spreading a layer of dry coarse sand in a thickness varying 5 mm to 10 mm and rolling the surface. 

Description : Why does my bleeding heart plant seems to get smaller each year?

Last Answer : check the PH...needs to be 5.0 to 6.0............ do a ring of fertilizer around it about 10 inches away.........each rain will wash it in.

Description : Segregation into special classes for the educable is generally recommended for approximately the lowest per cent of the general school population Options: A) One-half of one B) Two C) Five D) Ten

Last Answer : C) Five

Description : Did you learn about US slavery and segregation in K-12 school?

Last Answer : I grew up in the ‘60s in Oakland. We learned about slavery early. We learned about the underground railroad, the capture of Africans and the story of the Amistadt, the Civil War, it’s causes and effects. But I never heard about Juneteenth till at least the ‘80s.

Description : During segregation did we have four washrooms?

Last Answer : Expensive? Of the 4 designations listed, which might you suppose would be tasked with cleaning all 4 of those bathrooms? And do you imagine the individuals assigned to be well paid?

Description : Can we get segregation laws for meat eaters from vegans in a restaurant?

Last Answer : Well food smells can’t physically hurt anyone. If a person is so sensitive that it can that person needs to take responsibility for themselves.

Description : During racial segregation did they have four public washrooms?

Last Answer : Yes. I attended a middle school here in Charleston SC. There were like 4 water fountains, and bathrooms, always together. It seemed REALLY weird to me. I had just moved here from Europe. I found out that all the water fountains, and restrooms, were from the era of segregation. It seems crazy now…..

Description : When you learned about slavery and segregation in America, was it taught as American history, or more specifically Southern history?

Last Answer : answer:US History. Not being from the South, we didn’t have a Southern History course. Public schools in the northwest tend to have a northwest history section, and teach about the indigenous people and how we were scumbags to them as we took their land, cheated them and killed them off.

Description : Were the anti-segregation movements useless?

Last Answer : answer:While de facto segregation still exists in many places, it is not inherent in the legal structure as it was before 1965. It used to be illegal to sell a house to minorities, and that ... all. People that grow up with diversity succeed much more than people who grow up in insular societies.

Description : Americans: if you were born before 1968 what did you actually experience or know about regarding segregation and desegregation?

Last Answer : answer:My mother-in-law is visiting, and while her memory has big holes in it, she occasionally comes out with an interesting story (or story fragment) She says she was accidentally sent by her parents to an ... hair, so it was OK. I never got out of her whether she continued to go to that school.