In concrete technology, what distinction is made between the term specific gravity and bulk density? With...
In concrete technology, what distinction is made between the term specific gravity and bulk density? With the help of suitable sketches, explain the following terms and discuss their significance: absorption capacity, saturated–surface-dry condition and damp condition
Homework Answers
1. Bulk density is simply the total mass of material divided by the total volume. Specific gravity is the ratio of the solids density to the density of water, where solids density is the total dry (solids) mass divided the volume of the solids. Hence bulk density has units like g/cc, kg/m3, but specific gravity has no units.
2. Absorption capacity is the amount of moisture that can be absorbed by the material when it is kept in water for 24 hours period.
3. Saturated surface dry condition is the state of aggregates when the aggregates are fully saturated in volume inside but there is no extra water sticking to the surface.
4.Damp condition is when aggregates are wet. There can be moisture even on the surface also.
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In concrete technology, what distinction is made between the
term specific gravity and bulk density? With...
The question is as follows:- Q) Design the concrete mixture for the slab
The question is as follows:-
Q) Design the concrete mixture for the slab
2. A reinforced slab concrete foundation is to be poured for a building. The building is to be constructed near Edmonton. The slab will be in direct contact with the soil, and the soil typically has a sulphate content of 0.3 percent by mass. The minimum rebar spacing in the slab is 100 mm. The contractor is certain that his workers can place a concrete with a...
The Data given, An asphalt concrete specimen has the following properties: 1. Percent air voids in the compacted m...
The Data given,
An asphalt concrete specimen has the following properties: 1. Percent air voids in the compacted mix (VTM) 2. Voids in mineral aggregate (VMA) 3. Voids in mineral aggregate filed with asphalt (VFA) 4. Bulk specific gravity of compacted mix 5. Maximum (Rice) theoretical specific density 6. Plot VFA vs. binder content (i.e. 5 % , 5.5 % , 6%, and 6.5 % ) ( The specific binder content will be determined by the TA during lab depending...
please help with this concrete design mix problem (40 points) Design the concrete mix according to...
please help with this concrete design mix problem
(40 points) Design the concrete mix according to the following conditions. Perform the necessary computations to determine all ingredients in (kg) per unit volume of mix, and state resources and cite references used for each step. Summarize your design in the table at the bottom, and answer the questions beneath the table. Application Environment Area 52, airport location Idaho, (150m x 50m) runway test section Exposures: freeze-thaw, deicers Design Environment Concrete Requirements:...
1. (a) Briefly describe what is meant by the terms compaction and consolidation [5 marks] (b) In a standard B.S. compaction test, the following data was collected Moisture Content Bulk Density (Mg/m3...
1. (a) Briefly describe what is meant by the terms compaction and consolidation [5 marks] (b) In a standard B.S. compaction test, the following data was collected Moisture Content Bulk Density (Mg/m3) 1.87 2.04 2.13 2.20 2.16 2.09 $$5 8 10 13 16 19 Particle specific gravity 2.7 (i)Use a graph to find the maximum dry density and optimum moisture content of the soil shown above [10 marks] (ii) On the same graph, plot the zero and 5% air void...
Hi, can you help me do this problem, i know its a little bit long but...
Hi, can you help me do this problem, i know its a little bit
long but i really need to know how to answer it and know the
answer
thank you
Problem 2 Concrete Mix Design. (30 points) You are planning to place concrete for a roof slab in a 3 story light commercial building located in Boston, MA (cold climate). Develop the mix proportion for this concrete. Explain your selections. Design Criteria: 290 Design strength-3.700 psi Statistical data based...
What determines the lattice dimensions of minerals? How about their density (specific gravity) resistance to compression...
What determines the lattice dimensions of minerals? How about their density (specific gravity) resistance to compression (bulk modulus), and melting temperature? Useful inferences can be made using simple relations that describe our understanding of ionic bonding. which is the exchange of one or more electrons between atoms, forming compounds (minerals) composed of positively charged cations and negatively charged anions The attractive force between oppositely charged ions is given by Couldomb's law. The attractive force Fa between the positively and negatively...
Discuss the difference between regressions 4 and 5. What is the evaluation to be made between these two versions? What statistics do we consider to help make that evaluation? What is the economic int...
Discuss the difference between regressions 4 and 5. What is the
evaluation to be made between these two versions? What statistics
do we consider to help make that evaluation? What is the economic
interpretation (the additional insight into causation) of the
difference between the two regressions?
Data from 200 Dependent Variable AHE In(AHE) In(AHE) In(AHE) In(AHE) In(AHE) In(AHE) In(AHE) 0.147* 0.146 0.1900.1170.160 0.042 0.042 (0.056 0056 (0.064) 0.439 0.024 0.030 (0.002) 0.00210.0021-0.00270.0017 -0.0023 0.0007 (0.0007) (0.0009) 0.0009) (0.0011) 0.725 (0.052)...
A proposed residential development of a single tower is to be built on a sloping site...
A proposed residential development of a single tower is to be built on a sloping site as shown in Figure 1. The site has a (W1m x 25m wide building zone. A level platform has to be created by building a permanent retaining structure outside the building zone but within the (W2m x (W2m wide site boundary. A temporary slope, which may extend outside the site boundary, has to be formed in advance for construction of the retaining structure. ---...
Fr the falling fm . Lerive anl vcloci Pey o 42) assumin 5 usinte equatienmtion (6.5-3), niam it...
fr the falling fm . Lerive anl vcloci Pey o 42) assumin 5 usinte equatienmtion (6.5-3), niam ity, average velocity, or force on solid surfaces. tion appear, and In the integrations mentioned above, several constants of integration a the velocit stress at the boundaries of the system. The most commonly used boundae are as follows: using "boundary conditions"-that is, statements about a. At solid-fluid interfaces the fluid velocity equals the velocity with which surface is moving: this statement is applied...
In the titration below acetic acid (CH CooH)i (a) What is the volume of NaOH used to neutralize t...
In the titration below acetic acid (CH CooH)i (a) What is the volume of NaOH used to neutralize the acetic ac neutralized with 0.5 M NaOH. id? (3 pts) (b) What is the concentration of the acetic acid solution? (7 pts) nial Reading 15m Burette Final Reading 32 ml NeDH (aq Known Concentraton )+20mt_灬| 1 of Total volume of 2 on vnegar ies 5 drops acetic acid 25ml c) An acid solution is titrated to the end point by a...
The question is as follows:-
Q) Design the concrete mixture for the slab
2. A reinforced slab concrete foundation is to be poured for a building. The building is to be constructed near Edmonton. The slab will be in direct contact with the soil, and the soil typically has a sulphate content of 0.3 percent by mass. The minimum rebar spacing in the slab is 100 mm. The contractor is certain that his workers can place a concrete with a...
The Data given,
An asphalt concrete specimen has the following properties: 1. Percent air voids in the compacted mix (VTM) 2. Voids in mineral aggregate (VMA) 3. Voids in mineral aggregate filed with asphalt (VFA) 4. Bulk specific gravity of compacted mix 5. Maximum (Rice) theoretical specific density 6. Plot VFA vs. binder content (i.e. 5 % , 5.5 % , 6%, and 6.5 % ) ( The specific binder content will be determined by the TA during lab depending...
please help with this concrete design mix problem
(40 points) Design the concrete mix according to the following conditions. Perform the necessary computations to determine all ingredients in (kg) per unit volume of mix, and state resources and cite references used for each step. Summarize your design in the table at the bottom, and answer the questions beneath the table. Application Environment Area 52, airport location Idaho, (150m x 50m) runway test section Exposures: freeze-thaw, deicers Design Environment Concrete Requirements:...
1. (a) Briefly describe what is meant by the terms compaction and consolidation [5 marks] (b) In a standard B.S. compaction test, the following data was collected Moisture Content Bulk Density (Mg/m3) 1.87 2.04 2.13 2.20 2.16 2.09 $$5 8 10 13 16 19 Particle specific gravity 2.7 (i)Use a graph to find the maximum dry density and optimum moisture content of the soil shown above [10 marks] (ii) On the same graph, plot the zero and 5% air void...
Hi, can you help me do this problem, i know its a little bit
long but i really need to know how to answer it and know the
answer
thank you
Problem 2 Concrete Mix Design. (30 points) You are planning to place concrete for a roof slab in a 3 story light commercial building located in Boston, MA (cold climate). Develop the mix proportion for this concrete. Explain your selections. Design Criteria: 290 Design strength-3.700 psi Statistical data based...
What determines the lattice dimensions of minerals? How about their density (specific gravity) resistance to compression (bulk modulus), and melting temperature? Useful inferences can be made using simple relations that describe our understanding of ionic bonding. which is the exchange of one or more electrons between atoms, forming compounds (minerals) composed of positively charged cations and negatively charged anions The attractive force between oppositely charged ions is given by Couldomb's law. The attractive force Fa between the positively and negatively...
Discuss the difference between regressions 4 and 5. What is the
evaluation to be made between these two versions? What statistics
do we consider to help make that evaluation? What is the economic
interpretation (the additional insight into causation) of the
difference between the two regressions?
Data from 200 Dependent Variable AHE In(AHE) In(AHE) In(AHE) In(AHE) In(AHE) In(AHE) In(AHE) 0.147* 0.146 0.1900.1170.160 0.042 0.042 (0.056 0056 (0.064) 0.439 0.024 0.030 (0.002) 0.00210.0021-0.00270.0017 -0.0023 0.0007 (0.0007) (0.0009) 0.0009) (0.0011) 0.725 (0.052)...
A proposed residential development of a single tower is to be built on a sloping site as shown in Figure 1. The site has a (W1m x 25m wide building zone. A level platform has to be created by building a permanent retaining structure outside the building zone but within the (W2m x (W2m wide site boundary. A temporary slope, which may extend outside the site boundary, has to be formed in advance for construction of the retaining structure. ---...
fr the falling fm . Lerive anl vcloci Pey o 42) assumin 5 usinte equatienmtion (6.5-3), niam ity, average velocity, or force on solid surfaces. tion appear, and In the integrations mentioned above, several constants of integration a the velocit stress at the boundaries of the system. The most commonly used boundae are as follows: using "boundary conditions"-that is, statements about a. At solid-fluid interfaces the fluid velocity equals the velocity with which surface is moving: this statement is applied...
In the titration below acetic acid (CH CooH)i (a) What is the volume of NaOH used to neutralize the acetic ac neutralized with 0.5 M NaOH. id? (3 pts) (b) What is the concentration of the acetic acid solution? (7 pts) nial Reading 15m Burette Final Reading 32 ml NeDH (aq Known Concentraton )+20mt_灬| 1 of Total volume of 2 on vnegar ies 5 drops acetic acid 25ml c) An acid solution is titrated to the end point by a...
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