Civil Engineering Forum

Effect of Age on Concrete Strength

Effect of Age on Concrete Strength The strength versus gel/space ratio relationship has a general application because the amount of gel present in the cement paste at any time is itself a function of age

Soil-Particle Size

TeamCivil Foundation, Geotechnical

Soil-Particle Size The sizes of particles that make up soil vary over a wide range. Soils are generally called gravel, sand, silt, or clay, depending on the predominant size of particles within the soil. To

Water in Concrete

TeamCivil Concrete, Materials

Water in Concrete Water is a necessary component of all hydraulic concrete. It is usually used in amounts of 25–50 weight per cent of the cement. It has two engineering purposes: to enable (a) proper

Rebound Test: Equipment – Operation

TeamCivil Concrete, Tests

In this article, the Rebound Test (schmidt hammer test) is outlined. The Swiss engineer Ernst Schmidt, first developed a practicable rebound test hammer in the late 1940s, amd modern versions are based on this. Figure 1 shows the

Classification of Aggregates

TeamCivil Concrete, Materials

In this article named “Classification of Aggregates”, the general classification of aggregates is described. General Classification of Aggregates Aggregate size applied in concrete can vary from less than one-tenth of a millimetre to tens of

Crack Repair in Concrete (4)

TeamCivil Repair

Methods of Crack Repair in Concrete (4) Following the evaluation of the cracked structure, a suitable repair procedure can be selected. Successful repair procedures take into account the cause(s) of the cracking. For example, if

Methods of Crack Repair in Concrete (3)

TeamCivil Repair

Methods of Crack Repair in Concrete (3) Following the evaluation of the cracked structure, a suitable repair procedure can be selected. Successful repair procedures take into account the cause(s) of the cracking. For example, if

Methods of Crack Repair in Concrete (2)

TeamCivil Repair

Methods of Crack Repair in Concrete (2) Following the evaluation of the cracked structure, a suitable repair procedure can be selected. Successful repair procedures take into account the cause(s) of the cracking. For example, if