What is concrete?

Concrete = Agregate + cement paste
Cement paste = cement + water
Agitator car = concrete mixer car/vehicle
Fresh concrete
Pump car

Cement is made from limestone (main raw material).
Limestone was long ago composed from fossil of the coral on the sea floor, that was lifted by earth movement and formed (limestone) mountain.

コンクリート konkuriito : concrete (*INA: beton)
建設材料 kensetsu zairyou : construction materials
鉄道 tetsudou : railway, railroad
高架橋 koukakyou : elevated bridge
舗装 hosou : pavement
電柱 denchuu : utility pole (power/telephone pole)
製造工場 seizou koujou : manufacturing plant
型枠 katawaku : mold
木づち kidzuchi : wooden hammer/mallet
養生 youjou : covering, coating, curing

アジテータ車 ajiteeta-sha: agitator car

骨材 kotsuzai : aggregate (*INA: agregat, campuran)
物質 busshitsu : material, substance, matter
砂利 jari : gravel
砂 suna : sand
粒 tsubu : grain
粉 kona/ko : powder, flour
水和物 suiwabutsu : hydrate
石灰石 sekkaiseki : limestone
サンゴ sango : coral
鉄筋 tekkin : iron reinforcing bar
鉄筋コンクリート tekkin konkuriito : reinforced concrete

性質 seishitsu : nature, property
化学薬品 kagaku yakuhin : chemicals
化学反応 kagaku hannou : chemical reaction
建造物 kenzoubutsu : structure
材料 zairyou : ingredients, materials
成分 seibun : component, ingredient
原料 genryou : raw material
資源 shigen : resource
分量 bunryou : amount, quantity

大小 daishou : various sizes (large & small)
最適 saiteki : optimum, most suitable
適切 tekisetsu : appropriate, adequate
主な omona : main, important, principal
埋まる umaru : to be burried
練り混ぜる nerimazeru : mix, combine
砕く kudaku : crush, mash, break into pieces
積み込む tsumikomu : load, put on board
締め固める shimekatameru : to compact
固まる katamaru : to harden, solidify
おおう oou : to cover, conceal
溶け出す tokedasu : begin to dissolve
占める shimeru : to hold, to occupy
割る waru : divide, break, smash

採掘 saikutsu : mining
立坑 tatekou : pit
小割機 kowariki : dividing machine
一次破砕 ichiji hasai : first/primary crushing
地中 chichuu : underground
はりめぐらす harimegurasu : lay out, stretch around
貯鉱場 chokoujou : ore (mineral) storage
貨車 kasha : freight car
緑化 ryokuka : tree planting, afforestation

大昔 oomukashi : long ago
化石 kaseki : fossil
海底 kaitei : sea floor
地表 chihyou : ground surface
岩石 ganseki : rock
土 tsuchi : soil
層 sou : layer
不純物 fujunbutsu : foreign material, impurities

石炭 sekitan : coal
火力発電所 karyoku hatsudensho : thermal power plant
灰 hai : ash
キルン kirun : kiln
かま kama : stove, kiln
燃料 nenryou : fuel
サイロ sairo : silo (structure for storing bulk materials)
産業廃棄物 sangyou haikibutsu : industrial waste
焼成タワー shousei tawaa : firing (pottery) tower
廃熱 hainetsu : remaining/waste heat
有害 yuugai : harmful, hazardous
クリンカ kurinka : clinker (cement)
貯蔵 chozou : storage, preserve