Laboratory Tests
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How to conduct acid-resistant tests on bricks?
Fasi Ur Rahman
The tests conducted for acid-resistant bricks are: Water absorption Flexural strength Compressive strength Acid resistance To know more about acid-resistant brick and the detailed test procedure, read the article given below- Acid-Resistant Bricks: Properties, Types, Tests, and Advantages
The tests conducted for acid-resistant bricks are:
To know more about acid-resistant brick and the detailed test procedure, read the article given below-
See lessAcid-Resistant Bricks: Properties, Types, Tests, and Advantages
How to do a fineness test of fly ash using Le-Chatlier’s apparatus?
Fasi Ur Rahman
The fineness test of fly ash using Le-Chatlier’s apparatus is explained in the article below- Determination of Soundness of Cement by Le-Chatlier’s Principle
The fineness test of fly ash using Le-Chatlier’s apparatus is explained in the article below-
Determination of Soundness of Cement by Le-Chatlier’s Principle
See lessWhat is the Rockwell hardness of mild steel and aluminum?
Fasi Ur Rahman
The Rockwell hardness of mild steel is 70 HRB.
The Rockwell hardness of mild steel is 70 HRB.
See lessWhat are the types of cement mortar ratio?
Fasi Ur Rahman
Mortar mix ratio i.e. proportioning of cement sand in mortar provides consistency in the performance and appearance of masonry construction. Proper proportioning of mortar ingredients helps in having the following advantages: Uniformity of strength Uniform workability Uniform color Uniformity of proRead more
Mortar mix ratio i.e. proportioning of cement sand in mortar provides consistency in the performance and appearance of masonry construction. Proper proportioning of mortar ingredients helps in having the following advantages:
Mainly the proportioning of the cement and sand for mortar is conducted by volume proportioning compared to weight proportion.
The types of cement mortar are in detail explained in the article below-
Mortar Mix Ratio Proportioning for Masonry Construction
See lessWhat are the tests conducted on fly ash before using it as a replacement for cement?
Fasi Ur Rahman
The test conducted on fly ash prior to being used as replacement for cement are- Fineness of Fly Ash Specific Gravity of Fly Ash Size and Shape of Fly Ash Colour To know more about the detail in types of fly ash, test, properties, and uses, click the links below- Fly Ash – Properties, Types, MechaniRead more
The test conducted on fly ash prior to being used as replacement for cement are-
To know more about the detail in types of fly ash, test, properties, and uses, click the links below-
Fly Ash – Properties, Types, Mechanism and Uses
Fly Ash – Properties, Types, Mechanism and Uses
Concrete without Cement – A Green Alternative Fly Ash
See lessWhat is the type of Nozzle used for pelton wheel model
AdityaBhandakkar
Hi, During selecting a penstock, it's a crucial choice of the pipe diameter and the pressure permissible with the material. the material should be selected according to the pressure and the condition of the run also with local circumstances. HDPE- high-density polyethene pipes are a popular choice aRead more
Hi,
During selecting a penstock, it’s a crucial choice of the pipe diameter and the pressure permissible with the material. the material should be selected according to the pressure and the condition of the run also with local circumstances. HDPE- high-density polyethene pipes are a popular choice as a material for penstock. By using this material determine gives efficiency by up to 70%.
Nozzles must be designed in a way that the laws of pressure are as much as small as possible so that the coefficient of nozzle increases. To avoid the friction nozzle should be constructed with a possible largest radius.
See lessWhat is the purpose of doing CBR Test?
Kuldeep Singh
The purpose of doing a CBR test is to find out the California Bearing Ratio (CBR) of a material which has to be used for the subgrade of flexible pavements. The actual quantity that concerns the strength of the subgrade material is Resilient Modulus though. CBR is different from it but hugely corellRead more
The purpose of doing a CBR test is to find out the California Bearing Ratio (CBR) of a material which has to be used for the subgrade of flexible pavements. The actual quantity that concerns the strength of the subgrade material is Resilient Modulus though. CBR is different from it but hugely corellated. Also, in literature there are curves plotted for the CBR against the expected traffic (million axles per year) for every subgrade thickness. We can read the required thickness for which we need to design the subgrade layer if we know the CBR of our material and the design traffic. So, it is preferred not to get into the complexity of resilient modulus calculation and use CBR instead which can be easily tested on site.
By definition, CBR is the ratio of the opposing bearing stress experienced by a standard penetrator when penetrated by a distance of 2.5 cm into the rock to the actual crushing strength of the rock in percentage.
See lessWhat is Kelly ball test for workability of concrete?
AdityaBhandakkar
ASTM C-360 92 introduced the Kelly ball test for measuring the workability of concrete. Kelly ball test: 1) Freshly prepared concrete poured into a 20cm depth container. Make the leveled and remove all voids by shaking. 2)Kept the Kelly ball setup on that stiff paste in such a way that frame touchesRead more
ASTM C-360 92 introduced the Kelly ball test for measuring the workability of concrete.
Kelly ball test:
1) Freshly prepared concrete poured into a 20cm depth container. Make the leveled and remove all voids by shaking.
2)Kept the Kelly ball setup on that stiff paste in such a way that frame touches the paste and hold the handle of the hemisphere.
3)The frame setup kept Min. 23 cm away from circumference of container.i.e kept at the center.
4)Release handle and allow hemisphere to penetrate in the concrete paste.
5)Note down the reading. Do this process three times on different portions and make an average of these values.
See less