concr_mix_normal_strength: Concrete Mix Design for Normal Strength (Normal-weight)...

In iemisc: Irucka Embry's Miscellaneous Functions

Concrete Mix Design for Normal Strength (Normal-weight) Concrete

Description

Calculates the amount of cement, sand, gravel, and water needed for a test batch volume of normal strength concrete using the volumetric method.

Usage

concr_mix_normal_strength(
  fc,
  slump_use = NULL,
  max_size_aggr,
  FM,
  dry_rod_wt_aggr,
  mc_coarse,
  mc_fine,
  entrainment = c("Nonair", "Air"),
  construction_type = c("Reinforced Foundation walls and footings",
    "Plain footings and caissons", "Slabs, beams and reinforced walls",
    "Building Columns", "Pavements and slabs", "Heavy mass construction"),
  slump_value = c("Maximum", "Maximum + 1", "Minimum"),
  exposure = c("Nonair", "Mild", "Moderate", "Extreme"),
  trial_batch = c("1 cubic yard", "1 cubic foot", "0.5 cubic foot", "0.2 cubic foot",
    "All")
)

Arguments

fc	numeric vector that contains the concrete compressive strength (psi)
slump_use	numeric vector that contains the amount of slump (in)
max_size_aggr	numeric vector that contains the maximum aggregate size (in)
FM	numeric vector that contains the "Fineness Modulus of sand" (dimensionless)
dry_rod_wt_aggr	numeric vector that contains the dry rodded weight of aggregate (lb/ft^3)
mc_coarse	numeric vector that contains the moisture content of the coarse aggregate (whole number percent)
mc_fine	numeric vector that contains the moisture content of the fine aggregate (whole number percent)
entrainment	character vector that contains either Air or Nonair entrainment
construction_type	character vector that contains the intended type of construction
slump_value	character vector that contains the slump value (Maximum, Maximum + 1, or Minimum). It is "+ 1 in. for methods of consolidation other than vibration"
exposure	character vector that contains the exposure value (Mild, Moderate, or Extreme) for use with Air entrained concrete mixes or Nonair to indicate that it is a Nonair entrained concrete mix
trial_batch	character vector that contains the volume of the trial batch mix to return (1 cubic yard, 1 cubic foot, 0.5 cubic foot, 0.2 cubic foot, or All)

Value

the amounts of cement, sand, gravel, and water in lb, rounded to the hundredth, as a list to make 1 yd^3, 1 ft^3, 0.5 ft^3, or 0.2 ft^3 of normal strength concrete or as a data.table containing all batch volumes.

Author(s)

Irucka Embry, Hans Werner Borchers for the interp1 and interp2 functions from pracma

Source

1. r - Error when doing bilinear interpolation with 'interp2 pracma'; any better way for 2D interpolation? - Stack Overflow answered and edited by Zheyuan Li on Dec 8 2016. See https://stackoverflow.com/questions/41032225/error-when-doing-bilinear-interpolation-with-interp2-pracma-any-better-way.

2. r - data.table 1.10.0 - why does a named column index value not work while a integer column index value works without with = FALSE - Stack Overflow answered and edited by Matt Dowle on Dec 8 2016. See https://stackoverflow.com/questions/41032225/error-when-doing-bilinear-interpolation-with-interp2-pracma-any-better-way.

References

Edward G. Nawy, Reinforced Concrete: A Fundamental Approach, 5th Edition, Upper Saddle River, New Jersey: Pearson Prentice Hall, 2005, page 23-28.

See Also

concr_mix_lightweight_strength for Concrete Mix Design for Structural Lightweight Concrete

Examples

library(iemisc)

# 'Example 3.1 Mixture Design of Normal-weight Concrete' from Nawy
# (page 23-28)
# Design a concrete mix for 4000 psi concrete strength, beam, and a maximum
# size of aggregate = 3/4 in, with Fineness Modulus of sand = 2.6, the dry
# rodded weight of aggregate = 100 lb/ft^3^, and a moisture content of 3\%
# for the coarse aggregate and 2\% for the fine aggregate.

concr_mix_normal_strength(fc = 4000, max_size_aggr = 3 / 4, FM = 2.6,
dry_rod_wt_aggr = 100, mc_coarse = 3, mc_fine = 2, entrainment = "Nonair",
construction_type = "Reinforced Foundation walls and footings", slump_value
= "Maximum", exposure = "Nonair", trial_batch = "1 cubic yard")

iemisc documentation built on Sept. 25, 2023, 5:09 p.m.